EP1565531B2 - Solid pigment preparations containing water-soluble anionic surface-active additives that comprise carboxylate groups - Google Patents

Solid pigment preparations containing water-soluble anionic surface-active additives that comprise carboxylate groups Download PDF

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Publication number
EP1565531B2
EP1565531B2 EP03795813.9A EP03795813A EP1565531B2 EP 1565531 B2 EP1565531 B2 EP 1565531B2 EP 03795813 A EP03795813 A EP 03795813A EP 1565531 B2 EP1565531 B2 EP 1565531B2
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EP
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Prior art keywords
pigment
pigment preparations
pigments
und
weight
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EP03795813.9A
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German (de)
French (fr)
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EP1565531A2 (en
EP1565531B1 (en
Inventor
Hansulrich Reisacher
Ingo Klopp
Stephan Hüffer
Matthias KLÜGLEIN
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BASF SE
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/006—Preparation of organic pigments
    • C09B67/0063—Preparation of organic pigments of organic pigments with only macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes

Definitions

  • the invention relates to the preparation of these pigment preparations and their use for coloring high molecular weight organic and inorganic materials and plastics.
  • pigment preparations are usually used which contain water, organic solvent or mixtures thereof.
  • anionic, cationic, nonionic or amphoteric dispersants other auxiliaries, such as anti-drying agents, anti-freeze agents, thickeners and anti-skinning agents, must generally be added to these pigment preparations for stabilization.
  • the coloring of plastics requires complete dispersion of the pigment in the plastic in order to achieve maximum color strength and coloring effect.
  • appropriate expertise and a high level of shear energy are required for such dispersion, which is costly.
  • the plastics processor does not have this know-how and the required expensive and expensive dispersing equipment, the colored plastics often have so-called pigment spots, i. not dispersed pigment agglomerates, they are poorly spinnable and / or have high pressure filter values. Therefore, so-called masterbatches are often used. These are usually solid, concentrated pigment preparations in a fusible, at room temperature solid plastic matrix in which the powdered pigment is dispersed and thus finely distributed, i. the energy required to disperse the powder pigment was already applied in the preparation of the masterbatch.
  • pigment preparations which, in addition to the finely divided pigment (at least 3.9 wt .-%) basic pigment derivatives and (maximum 9.5 wt .-%) phosphoric acid esters of polyethylene glycols and of alkylene oxide adducts of oxo and fatty alcohols and for the production of flowable printing inks and master pastes are used.
  • anionic modified phenol / styrene polyglycol ethers are mentioned as dispersants for solid pigment preparations for seed coloring.
  • the explicitly disclosed pigment formulations contain only nonionic dispersants based on reaction products of hydrogenated castor oil with ethylene oxide.
  • solid pigment preparations which contain dispersants based on nonionic modified phenol / styrene polyglycol ethers or mixtures of ethoxylated castor oil with minor amounts of these ethers or of Phosphonklam and additionally always a thickener based on optionally partially hydrogenated polyvinyl alcohol or anionic polyhydroxy compounds and for the pigmentation of water-based application media are used.
  • the EP-A-256 427 relates to pigment preparations for cosmetic articles which contain mixtures of anionic dispersants based on alkyl glycol ether sulfates and phosphoric acid esters of optionally ethoxylated fatty alcohols in which the sulfates are always present in excess.
  • Pigment preparations are known which are prepared by precipitating non-water-soluble salts of anionic polymers with polyvalent metal cations on the pigment particles.
  • the pigment preparations according to the invention contain as essential constituents the pigment (A) and the water-soluble anionic surface-active additive (B) and, if desired, additionally the nonionic additive (C).
  • organic or inorganic pigments may be present in the pigment preparations according to the invention.
  • the pigment preparations may also contain mixtures of various organic or various inorganic pigments or mixtures of organic and inorganic pigments.
  • the pigments are in finely divided form. Accordingly, the pigments usually have mean particle sizes of 0.1 to 5 ⁇ m
  • the organic pigments are usually organic colored and black pigments.
  • Inorganic pigments may also be color pigments (colored, black and white pigments) as well as luster pigments and the inorganic pigments commonly used as fillers.
  • suitable organic color pigments - monoazo pigments Cl Pigment Brown 25; Cl Pigment Orange 5, 13, 36, 38, 64 and 67; Cl Pigment Red 1, 2, 3, 4, 5, 8, 9, 12, 17, 22, 23, 31, 48: 1, 48: 2, 48: 3, 48: 4, 49, 49: 1, 51 : 1, 52: 1, 52: 2, 53, 53: 1, 53: 3, 57: 1, 58: 2, 58: 4, 63, 112, 146, 148, 170, 175, 184, 185, 187 , 191: 1, 208, 210, 245, 247 and 251; CI Pigment Yellow 1, 3, 62, 65, 73, 74, 97, 120, 151, 154, 168, 181, 183 and 191; CI Pigment Violet 32; - Disazo pigments: CI Pigment Orange 16, 34, 44 and 72; CI Pigment Yellow 12, 13, 14, 16, 17, 81, 83, 106, 113, 126, 127, 155, 174, 176, 180 and
  • Suitable inorganic color pigments are, for example: - white pigments: Titanium dioxide (CI Pigment White 6), zinc white, colored zinc oxide; Zinc sulfide, lithopone; - black pigments: Iron oxide black (CI Pigment Black 11), iron manganese black, spinel black (CI Pigment Black 27); Carbon black (CI Pigment Black 7); - colored pigments: Chromium oxide, chromium oxide hydrate green; Chrome green (CI Pigment Green 48); Cobalt green (CI Pigment Green 50); Ultramarine green; Cobalt blue (CI Pigment Blue 28 and 36; CI Pigment Blue 72); Ultramarine blue; Manganese blue; Ultramarine violet; Cobalt and manganese violet; Iron oxide red (Cl Pigment Red 101); Cadmium sulfoselenide (Cl Pigment Red 108); Cerium sulphide (Cl Pigment Red 265); Molybdate red (Cl Pigment Red 104); ultramarine; Iron oxide brown (Cl Pigment Brown 6 and
  • inorganic pigments which are commonly used as fillers are transparent silica, quartz flour, alumina, aluminum hydroxide, natural mica, natural and precipitated chalk and barium sulfate.
  • the luster pigments are single-phase or multi-phase platelet-shaped pigments whose color play is characterized by the interplay of interference, reflection and absorption phenomena. Examples which may be mentioned aluminum platelets and one or more times, especially coated with metal oxides, aluminum, iron oxide and mica platelets.
  • the solid pigment preparations according to the invention contain water-soluble anionic surface-active additives from the group of partially to completely esterified with polyether alcohols or their one-sided end phenomenonver fundamentalen derivatives homopolymers and Copolmerisate of ethylenically unsaturated monocarboxylic acids and / or ethylenically unsaturated dicarboxylic acids which may contain in addition polymerized vinyl monomers containing no acid function and the salts of these homopolymers and copolymers ,
  • Examples of preferred homopolymers of these monomers are, in particular, polyacrylic acids.
  • the copolymers of the monomers mentioned may be composed of two or more, in particular three, different monomers. There may be random copolymers, alternating copolymers, block copolymers and graft copolymers.
  • Preferred copolymers are styrene / acrylic acid, acrylic acid / maleic acid, acrylic acid / methacrylic acid, butadiene / acrylic acid, isobutene / maleic acid, diisobutene / maleic acid and styrene / maleic acid copolymers, each of which contains acrylic acid esters and / or maleic acid esters as additional monomer constituents may contain, called.
  • Additives (B) are understood as meaning the alkoxylation products of the carboxyl group-containing polymers.
  • polyether alcohols themselves, preferably polyethylene glycols and polypropylene glycols, as well as their unilaterally end-capped derivatives, especially the corresponding monoethers, such as monoaryl ethers, eg monophenyl ethers, and in particular mono-C 1 -C 26 -alkyl ethers, for example ethylene etherified with fatty alcohols - And propylene glycols, and the polyether amines, which can be prepared, for example, by converting a teminalen OH group of the corresponding polyether or by polyaddition of alkylene oxides to preferably primary aliphatic amines.
  • Polyethylene glycols, polyethylene glycol monoethers and polyether amines are preferred.
  • the average molecular weights M n of the polyether alcohols and their derivatives used are usually 200 to 10,000.
  • the surface-active properties of the additives (B) can be adjusted in a targeted manner.
  • Such anionic surface-active additives (B) are also known and commercially available.
  • the pigment preparations according to the invention may additionally contain nonionic surface-active additives based on polyethers as component (C).
  • polyethyleneoxides preferably polypropyleneoxides and poly (phenylethyleneoxides), especially block copolymers, in particular polypropylene oxide and polyethylene oxide blocks or poly (phenylethylene oxide) and Polyethylene oxide blocks having polymers, and also random copolymers of these alkylene oxides suitable.
  • block copolymers in particular polypropylene oxide and polyethylene oxide blocks or poly (phenylethylene oxide) and Polyethylene oxide blocks having polymers, and also random copolymers of these alkylene oxides suitable.
  • polyalkylene oxides can be prepared by polyaddition of the alkylene oxides onto starter molecules, such as saturated or unsaturated aliphatic and aromatic alcohols, phenol or naphthol, which are each represented by alkyl, in particular C 1 -C 12 -alkyl, preferably C 4 -C 12 - or C 1 - C 4 alkyl, substituted, saturated or unsaturated aliphatic and aromatic amines, saturated or unsaturated aliphatic carboxylic acids and carboxylic acid amides can be prepared.
  • starter molecules such as saturated or unsaturated aliphatic and aromatic alcohols, phenol or naphthol, which are each represented by alkyl, in particular C 1 -C 12 -alkyl, preferably C 4 -C 12 - or C 1 - C 4 alkyl, substituted, saturated or unsaturated aliphatic and aromatic amines, saturated or unsaturated aliphatic carboxylic acids and carboxylic acid amides can be prepared.
  • Suitable aliphatic alcohols generally contain 6 to 26 C atoms, preferably 8 to 18 C atoms, and may be unbranched, branched or cyclic. Examples which may be mentioned are octanol, nonanol, decanol, isodecanol, undecanol, dodecanol, 2-butyloctanol, tridecanol, isotridecanol, tetradecanol, pentadecanol, hexadecanol (cetyl alcohol), 2-hexyldecanol, heptadecanol, octadecanol (stearyl alcohol), 2-heptylundecanol, 2-octyldecanol , 2-nonyltridecanol, 2-decyltetradecanol, oleyl alcohol and 9-octadecenol, as well as mixtures of these alcohols, such as C 8 / C 10
  • the alkylene oxide adducts to these alcohols usually have average molecular weights M n of from 200 to 5,000.
  • aromatic alcohols examples include unsubstituted phenol and ⁇ - and ⁇ -naphthol, hexylphenol, heptylphenol, octylphenol, nonylphenol, isononylphenol, undecylphenol, dodecylphenol, di- and tributylphenol and dinonylphenol.
  • Suitable aliphatic amines correspond to the aliphatic alcohols listed above. Of particular importance here are the saturated and unsaturated fatty amines, which preferably have 14 to 20 carbon atoms. Examples of aromatic amines are aniline and its derivatives.
  • Particularly suitable aliphatic carboxylic acids are saturated and unsaturated fatty acids, preferably containing 14 to 20 carbon atoms, and hydrogenated, partially hydrogenated and unhydrogenated resin acids, as well as polybasic carboxylic acids, e.g. Dicarboxylic acids, such as maleic acid.
  • Suitable carboxylic acid amides are derived from these carboxylic acids.
  • the alkylene oxide adducts to the monohydric amines and alcohols are of particular interest.
  • divalent to pentavalent amines are preferred, in particular of the formula H 2 N- (R-NR 1 ) n -H (R: C 2 -C 6 -alkylene; R 1 : hydrogen or C 1 -C 6 Alkyl; n: 1 to 5).
  • ethylenediamine diethylenetriamine, triethylenetetramine, tetraethylenepentamine, propylenediamine-1,3, dipropylenetriamine, 3-amino-1-ethylene-aminopropane, hexamethylenediamine, dihexamethylenetriamine, 1,6-bis (3-aminopropylamino) -hexane and N-methyldipropylenetriamine, with hexamethylenediamine and diethylenetriamine being particularly preferred and ethylenediamine being most preferred.
  • these amines are first reacted with propylene oxide and then with ethylene oxide.
  • the content of the block copolymers of ethylene oxide is usually about 10 to 90% by weight.
  • the block copolymers based on polyvalent amines generally have average molecular weights M n of from 1,000 to 40,000, preferably from 1,500 to 30,000.
  • dihydric to pentahydric alcohols are preferred.
  • Particularly preferred alkylene oxide adducts with at least bifunctional alcohols have a central polypropylene oxide block, that is to say they start from a propylene glycol or polypropylene glycol which is reacted first with further propylene oxide and then with ethylene oxide.
  • the content of the block copolymers of ethylene oxide is usually from 10 to 90% by weight.
  • the polyhydric alcohol block copolymers generally have average molecular weights M n of from 1,000 to 20,000, preferably from 1,000 to 15,000.
  • alkylene oxide are known and commercially available for example under the name Tetronic ® and Pluronic ® (BASF).
  • the pigment preparations according to the invention contain 60 to 95% by weight of component (A), 5 to 40% by weight of component (B) and 0 to 20% by weight of component (C).
  • the composition of the pigment preparations according to the invention is preferably from 60 to 85% by weight of the pigment (A), from 5 to 20% by weight of the anionic additive (B) and from 5 to 15% by weight. -% of the nonionic additive (C).
  • the pigment preparations according to the invention can advantageously be obtained by the preparation process likewise according to the invention by subjecting the pigment (A) initially to wet comminution in aqueous suspension containing at least part of the additive (B) and optionally of the additive (C) and then, if appropriate after addition of the remaining amount of additive (B) and optionally (C), dried.
  • the pigment (A) can be used in the inventive method as a dry powder or in the form of a press cake.
  • the pigment (A) used is preferably a finished product, i. the primary grain size of the pigment is already set to the value desired for the application.
  • This pigment finish is particularly recommended in the case of organic pigments, since the raw material obtained during pigment synthesis is generally not suitable for the application.
  • the adjustment of the primary grain size can also be carried out during pigment synthesis, so that the resulting pigment suspensions can be used directly in the process according to the invention.
  • the finished pigment (A) usually reagglomerates again during drying or on the filter unit, it is subjected to wet comminution in aqueous suspension, e.g. grinding in a stirred ball mill.
  • At least some of the additive (B and optionally C) present in the finished pigment preparation should be present, preferably the entire amount of additive (B and if appropriate C) is added before the wet comminution.
  • the particle size of the pigment preparations according to the invention can be controlled in a targeted manner.
  • fine-particle granules with mean particle sizes of 50 to 5000 ⁇ m, in particular 100 to 1000 ⁇ m, can be obtained.
  • spray drying usually granules are obtained with average particle sizes ⁇ 20 microns.
  • Finely divided preparations can be obtained during drying in the paddle dryer and during evaporation with subsequent grinding.
  • the pigment preparations according to the invention are in granular form.
  • the spray granulation is preferably carried out in a spray tower with a single-fluid nozzle.
  • the suspension is sprayed here in the form of larger drops, the water evaporates.
  • the additives melt at the drying temperatures and thus lead to the formation of a largely spherical granules with a particularly smooth surface (BET values of generally ⁇ 15 m 2 / g, in particular ⁇ 10 m 2 / g).
  • the gas inlet temperature in the spray tower is generally from 180 to 300 ° C, preferably from 150 to 300 ° C.
  • the gas outlet temperature is usually 70 to 150 ° C, preferably 70 to 130 ° C.
  • the residual moisture content of the pigment granules obtained is preferably ⁇ 2% by weight.
  • the pigment preparations according to the invention are characterized by their excellent application properties in a liquid phase comparable color properties, in particular their color strength and brilliance, their hue and hiding power, and especially by their stir-in behavior, ie they can be distributed with very little energy input by simply stirring or shaking in the application media. This applies in particular to the coarse-particle pigment granules which constitute the preferred embodiment of the pigment preparations according to the invention.
  • the pigment preparations according to the invention also have the following advantages: they have a higher pigment content. While liquid preparations tend to change in viscosity during storage and must be mixed with preservatives and agents to increase the freeze and / or drying resistance, the pigment preparations according to the invention show very good storage stability. They are economically and ecologically advantageous in terms of packaging, storage and transport. Since they are solvent-free, they have higher flexibility in the application.
  • the pigment preparations according to the invention in granular form are characterized by excellent abrasion resistance, low compaction tendency or agglomeration, uniform grain distribution, good pourability, pourability and metering capability as well as dust-free handling and application.
  • Liquid application media can also be purely aqueous, mixtures of water and organic solvents, e.g. Alcohols, or only on organic solvents, such as alcohols, glycol ethers, ketones, e.g. Methyl ethyl ketone, amides, e.g. N-methylpyrrolidone and dimethylformamide, esters, e.g. Ethyl acetate and butyl ester and methoxypropyl acetate, aromatic or aliphatic hydrocarbons, e.g. Xylene, mineral oil and gasoline based.
  • organic solvents e.g. Alcohols, or only on organic solvents, such as alcohols, glycol ethers, ketones, e.g. Methyl ethyl ketone, amides, e.g. N-methylpyrrolidone and dimethylformamide, esters, e.g. Ethyl acetate and butyl ester and methoxyprop
  • the preparations may first be stirred into a solvent which is compatible with the respective application medium, which in turn is possible with very little input of energy, and then introduced into this application medium.
  • a solvent which is compatible with the respective application medium, which in turn is possible with very little input of energy.
  • Slurries of pigment preparations in glycols or other common solvents in the paint industry, such as methoxypropyl acetate may be used to render aqueous based pigment formulations compatible with hydrocarbon based or nitrocellulose based systems.
  • lacquers e.g. Building coatings, industrial coatings, vehicle coatings, radiation-curable coatings; Paints, both exterior and interior, e.g. Wood paints, lime paints, glues, emulsion paints; Printing inks, e.g. Offset inks, flexographic inks, toluene gravure inks, textile inks, radiation curable inks; Inks, including ink-jet inks; Color filter; Building materials (usually water is added only after dry mixing of building material and pigment granules), e.g.
  • Silicate plaster systems cement, concrete, mortar, gypsum; Asphalt, sealants; cellulosic materials, e.g. Paper, cardboard, cardboard, wood and wood-based materials that may be painted or otherwise coated; adhesives; film-forming polymeric protective colloids, such as those used in the pharmaceutical industry; cosmetic articles; Detergents.
  • the plastics can advantageously be produced with low energy input, e.g. by co-extrusion (preferably with a single- or twin-screw extruder), rolling, kneading or milling, be colored with the pigment preparations of the invention. They can be present as plastic masses or melts and processed into plastic moldings, films and fibers.
  • the pigment preparations of the invention are also characterized in the plastic coloring by overall advantageous application properties, especially good coloristic properties, especially high color strength and brilliance, and the good rheological properties of the plastics dyed with them, in particular low pressure filter values (high filter life) and good spinnability from.
  • the pigment preparations were prepared by adding a suspension of xg-finished pigment (A), yg additive (B) and optionally additive (C) in 150 g of water (at pH ⁇ 7 by adding 25% strength by weight sodium hydroxide solution to a pH value of 7) in a ball mill to a d 50 value of ⁇ 1 ⁇ m and then in a laboratory spray tower (Mini Spray Dryer B-191, Büchi, gas inlet temperature 170 ° C, gas outlet temperature 70 ° C) was spray-dried.
  • the color strength of the pigment preparations was determined colorimetrically in the white whitening (indication of the dyeing equivalents FAE, DIN 55986) in a water-based emulsion paint.
  • the resulting paint was then coated on a black / white test board with a 100 ⁇ m wire-wound rod and dried for 30 minutes.
  • the pigment preparations according to the invention showed comparable color strengths to the respectively analogous commercially available aqueous preparations of the pigments.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A solid pigment preparation contains by wt. (a) a pigment (60-95%); (b) a water-soluble anionic surfactant (5-40%) which is a polymer of an ethylenically unsaturated mono- and/or di-carboxylic acid optionally copolymerized with an acid function-free vinyl monomer, the alkoxylation product of such a (co)polymer or a salt of the (co)polymer or its alkoxylation product; and (c) a polyether-based nonionic surfactant (0-20%). An Independent claim is also included for production of the pigment preparation by wet comminuting pigment (A) in a suspension containing at least a part of (B) and optionally also component (C) and then optionally adding any remainder of (B) and/or (C) and drying the mixture.

Description

Die vorliegende Erfindung betrifft feste Pigmentzubereitungen, enthaltend als wesentliche Bestandteile

  1. (A) 60 bis 95 Gew.-% mindestens eines Pigments,
  2. (B) 5 bis 40 Gew.-% mindestens eines wasserlöslichen anionischen oberflächenaktiven Additivs aus der Gruppe der teilweise bis vollständig mit Polyetheralkoholen oder deren einseitig endgruppenverschlossenen Derivaten veresterten Homo- und Copolymerisate von ethylenisch ungesättigten Monocarbonsäuren und/oder ethylenisch ungesättigten Dicarbonsäuren, die zusätzlich keine Säurefunktion enthaltende Vinylmonomere einpolymerisiert enthalten können und der Salze dieser Homo- und Copolymerisate und
  3. (C) 0 bis 20 Gew.-% mindestens eines nichtionischen oberflächenaktiven Additivs auf der Basis von Polyethern.
The present invention relates to solid pigment preparations containing as essential constituents
  1. (A) 60 to 95% by weight of at least one pigment,
  2. (B) 5 to 40 wt .-% of at least one water-soluble anionic surface-active additive from the group of partially or completely esterified with polyether alcohols or their one-sided endgruppenverschlossenen derivatives homo- and copolymers of ethylenically unsaturated monocarboxylic acids and / or ethylenically unsaturated dicarboxylic acids, which additionally no acid function containing vinyl monomers in copolymerized form and the salts of these homopolymers and copolymers and
  3. (C) 0 to 20 wt .-% of at least one nonionic surface-active additive based on polyethers.

Weiterhin betrifft die Erfindung die Herstellung dieser Pigmentzubereitungen und ihre Verwendung zum Einfärben von hochmolekularen organischen und anorganischen Materialien sowie von Kunststoffen.Furthermore, the invention relates to the preparation of these pigment preparations and their use for coloring high molecular weight organic and inorganic materials and plastics.

Zur Pigmentierung von flüssigen Systemen, wie Anstrichmitteln, Lacken, Dispersions- und Druckfarben, werden üblicherweise Pigmentpräparationen eingesetzt, die Wasser, organisches Lösungsmittel oder Mischungen davon enthalten. Neben anionischen, kationischen, nichtionischen oder amphoteren Dispergiermitteln müssen diesen Pigmentpräparationen in der Regel weitere Hilfsmittel, wie Eintrocknungsverhinderer, Mittel zur Erhöhung der Gefrierbeständigkeit, Verdicker und Antihautmittel, zur Stabilisierung zugesetzt werden.For pigmenting liquid systems such as paints, lacquers, dispersion and printing inks, pigment preparations are usually used which contain water, organic solvent or mixtures thereof. In addition to anionic, cationic, nonionic or amphoteric dispersants, other auxiliaries, such as anti-drying agents, anti-freeze agents, thickeners and anti-skinning agents, must generally be added to these pigment preparations for stabilization.

Es bestand Bedarf an neuen Pigmentzubereitungen, die in ihren koloristischen Eigenschaften und der Dispergierbarkeit den flüssigen Präparationen vergleichbar sind, jedoch nicht die genannten Zusätze erfordern und leichter zu handhaben sind. Durch einfaches Trocknen der flüssigen Präparationen können jedoch keine festen Pigmentzubereitungen erhalten werden, die vergleichbare Anwendungseigenschaften aufweisen.There has been a demand for new pigment formulations which are comparable in their coloristic properties and dispersibility to the liquid preparations, but do not require the additives mentioned and are easier to handle. By simply drying the liquid preparations, however, no solid pigment preparations can be obtained which have comparable application properties.

Die Einfärbung von Kunststoffen erfordert die vollständige Dispergierung des Pigments im Kunststoff, um maximale Farbstärke und Färbewirkung zu erzielen. Bei den üblicherweise eingesetzten Pulverpigmenten ist für eine solche Dispergierung ein entsprechendes Know-how und ein hoher Eintrag an Scherenergie erforderlich, was kostspielig ist. Wenn der Kunststoffverarbeiter nicht über dieses Know-how sowie die erforderlichen aufwendigen und teuren Dispergiergeräte verfügt, weisen die eingefärbten Kunststoffe oftmals sogenannte Pigmentstippen, d.h. nicht ausdispergierte Pigmentagglomerate, auf, sie sind schlecht verspinnbar und/oder besitzen hohe Druckfilterwerte. Deshalb wird oftmals auf sogenannte Masterbatches zurückgegriffen. Das sind üblicherweise feste, konzentrierte Pigmentpräparationen in einer schmelzbaren, bei Raumtemperatur festen Kunststoffmatrix, in der das pulverförmige Pigment ausdispergiert und damit feinverteilt vorliegt, d.h. die zur Dispergierung des Pulverpigments erforderliche Energie wurde bereits bei der Herstellung des Masterbatches aufgebracht.The coloring of plastics requires complete dispersion of the pigment in the plastic in order to achieve maximum color strength and coloring effect. In the case of the powder pigments usually used, appropriate expertise and a high level of shear energy are required for such dispersion, which is costly. If the plastics processor does not have this know-how and the required expensive and expensive dispersing equipment, the colored plastics often have so-called pigment spots, i. not dispersed pigment agglomerates, they are poorly spinnable and / or have high pressure filter values. Therefore, so-called masterbatches are often used. These are usually solid, concentrated pigment preparations in a fusible, at room temperature solid plastic matrix in which the powdered pigment is dispersed and thus finely distributed, i. the energy required to disperse the powder pigment was already applied in the preparation of the masterbatch.

In der DE-A-3914 384 werden Pigmentzubereitungen beschrieben, die neben dem feinteiligen Pigment (mindestens 3,9 Gew.-%) basische Pigmentderivate und (maximal 9,5 Gew.-%) Phosphorsäureester von Polyethylenglykolen und von Alkylenoxidaddukten an Oxo- und Fettalkohole enthalten und zur Herstellung von fließfähigen Druckfarben und Stammpasten eingesetzt werden.In the DE-A-3914384 pigment preparations are described which, in addition to the finely divided pigment (at least 3.9 wt .-%) basic pigment derivatives and (maximum 9.5 wt .-%) phosphoric acid esters of polyethylene glycols and of alkylene oxide adducts of oxo and fatty alcohols and for the production of flowable printing inks and master pastes are used.

In der EP-A-1 103 173 werden u.a. anionisch modifizierte Phenol/Styrol-Polyglykolether als Dispergiermittel für feste Pigmentzubereitungen zur Saatguteinfärbung genannt. Die explizit offenbarten Pigmentzubereitungen enthalten jedoch nur nichtionische Dispergiermittel auf der Basis von Umsetzungsprodukten von hydriertem Ricinusöl mit Ethylenoxid.In the EP-A-1 103 173 For example, anionic modified phenol / styrene polyglycol ethers are mentioned as dispersants for solid pigment preparations for seed coloring. However, the explicitly disclosed pigment formulations contain only nonionic dispersants based on reaction products of hydrogenated castor oil with ethylene oxide.

Aus der DE-A-100 35 494 sind feste Präparationen von Metallkomplexpigmenten mit eingelagertem Melamin bekannt. Als mögliche Dispergiermittel werden anionische, kationische, amphotere und nichtionische Dispergiermittel aufgeführt, explizit als Dispergiermittel eingesetzt wird ein sulfatierter ethoxylierter Fettalkohol.From the DE-A-100 35 494 For example, solid preparations of metal complex pigments with intercalated melamine are known. As possible dispersants anionic, cationic, amphoteric and nonionic dispersants are listed, is explicitly used as a dispersant, a sulfated ethoxylated fatty alcohol.

In der DE-A-199 05 269 werden feste Pigmentzubereitungen beschrieben, die Dispergiermittel auf Basis nichtionisch modifizierter Pheno/Styrol-Polyglykolether oder Mischungen von ethoxyliertem Ricinusöl mit untergeordneten Mengen von diesen Ethern oder von Phosphonsäureestem und zusätzlich stets einen Verdicker auf Basis von gegebenenfalls teilhydriertem Polyvinylalkohol oder von anionischen Polyhydroxyverbindungen enthalten und zur Pigmentierung von wasserbasierenden Anwendungsmedien eingesetzt werden.In the DE-A-199 05 269 solid pigment preparations are described which contain dispersants based on nonionic modified phenol / styrene polyglycol ethers or mixtures of ethoxylated castor oil with minor amounts of these ethers or of Phosphonsäureestem and additionally always a thickener based on optionally partially hydrogenated polyvinyl alcohol or anionic polyhydroxy compounds and for the pigmentation of water-based application media are used.

Die EP-A-256 427 betrifft Pigmentzubereitungen für Kosmetikartikel, die Mischungen von anionischen Dispergiermitteln auf Basis von Alkylglykolethersulfaten und Phosphorsäureestern von gegebenenfalls oxethylierten Fettalkoholen, in denen die Sulfate stets im Überschuß vorliegen, enthalten.The EP-A-256 427 relates to pigment preparations for cosmetic articles which contain mixtures of anionic dispersants based on alkyl glycol ether sulfates and phosphoric acid esters of optionally ethoxylated fatty alcohols in which the sulfates are always present in excess.

Weiterhin sind in den nicht vorveröffentlichten DE-A-102 27 657 und 102 33 081 feste Pigmentzubereitungen, die anionische oberflächenaktive Additive auf der Basis von Phosphorsäure-, Phosphonsäure-, Schwefelsäure- und/oder Sulfonsäureestern von Polyethern und deren Salzen enthalten, sowie ihre Verwendung zur Einfärbung von hochmolekularen organischen und anorganischen Materialien sowie Kunststoffen beschrieben.Furthermore, in the not previously published DE-A-102 27 657 and 102 33 081 solid pigment preparations containing anionic surface-active additives based on phosphoric acid, phosphonic acid, sulfuric acid and / or sulfonic acid esters of polyethers and their salts, and their use for coloring high molecular weight organic and inorganic materials and plastics described.

Schließlich sind aus der EP-A-58 865 Pigmentpräparationen bekannt, die durch Auffällen nicht wasserlöslicher Salze anionischer Polymerer mit mehrwertigen Metallkationen auf die Pigmentteilchen hergestellt werden.Finally, from the EP-A-58,865 Pigment preparations are known which are prepared by precipitating non-water-soluble salts of anionic polymers with polyvalent metal cations on the pigment particles.

Der Erfindung lag die Aufgabe zugrunde, feste Pigmentzubereitungen bereitzustellen, die sich durch insgesamt vorteilhafte Anwendungseigenschaften, insbesondere hohe Farbstärke und besonders leichte Dispergierbarkeit in Anwendungsmedien verschiedenster Art, auszeichnen.It is an object of the present invention to provide solid pigment preparations which are distinguished by overall advantageous application properties, in particular high color strength and particularly easy dispersibility in application media of the most varied types.

Demgemäß wurden Pigmentzubereitungen gefunden, welche als wesentliche Bestandteile

  1. (A) 60 bis 95 Gew.-% mindestens eines Pigments,
  2. (B) 5 bis 40 Gew.-% mindestens eines wasserlöslichen anionischen oberflächenaktiven Additivs aus der Gruppe der teilweise bis vollständig mit Polyetheralkoholen oder deren einseitig endgruppenverschlossenen Derivaten veresterten Homo- und Copolymerisate von ethylenisch ungesättigten Monocarbonsäuren und/oder ethylenisch ungesättigten Dicarbonsäuren, die zusätzlich keine Säurefunktion enthaltende Vinylmonomere einpolymerisiert enthalten können und der Salze dieser Homo- und Copolymerisate und
  3. (C) 0 bis 20 Gew.-% mindestens eines nichtionischen oberflächenaktiven Additivs auf der Basis von Polyethern
enthalten.Accordingly, pigment preparations have been found which are essential constituents
  1. (A) 60 to 95% by weight of at least one pigment,
  2. (B) 5 to 40 wt .-% of at least one water-soluble anionic surface-active additive from the group of partially or completely esterified with polyether alcohols or their one-sided endgruppenverschlossenen derivatives homo- and copolymers of ethylenically unsaturated monocarboxylic acids and / or ethylenically unsaturated dicarboxylic acids, which additionally no acid function containing vinyl monomers in copolymerized form and the salts of these homopolymers and copolymers and
  3. (C) 0 to 20 wt .-% of at least one nonionic surface-active additive based on polyethers
contain.

Außerdem wurde ein Verfahren zur Herstellung der Pigmentzubereitungen gefunden, welches dadurch gekennzeichnet ist, daß man das Pigment (A) zunächst in wäßriger, zumindest einen Teil des Additivs (B) und gegebenenfalls des Additivs (C) enthaltenden Suspension einer Naßzerkleinerung unterwirft und die Suspension dann, gegebenenfalls nach Zugabe der restlichen Menge Additiv (B) und gegebenenfalls (C), trocknet.In addition, a process for the preparation of the pigment preparations was found, which is characterized in that the pigment (A) first in aqueous, at least part of the additive (B) and optionally of the additive (C) containing suspension of wet comminution and then the suspension , optionally after addition of the remaining amount of additive (B) and optionally (C), dried.

Weiterhin wurde ein Verfahren zur Einfärbung von hochmolekularen organischen und anorganischen Materialen gefunden, welches dadurch gekennzeichnet ist, daß man die Pigmentzubereitungen durch Einrühren oder Schütteln in diese Materialien einträgt.Furthermore, a process for coloring high molecular weight organic and inorganic materials was found, which is characterized in that one enters the pigment preparations by stirring or shaking in these materials.

Schließlich wurde ein Verfahren zur Einfärbung von Kunststoffen gefunden, welches dadurch gekennzeichnet ist, daß man diese Pigmentzubereitungen durch Extrudieren, Walzen, Kneten oder Mahlen in die Kunststoffe einarbeitet.Finally, a process for coloring plastics was found, which is characterized by incorporating these pigment preparations by extrusion, rolling, kneading or grinding in the plastics.

Die erfindungsgemäßen Pigmentzubereitungen enthalten als wesentliche Bestandteile das Pigment (A) und das wasserlösliche anionische oberflächenaktive Additiv (B) sowie gewünschtenfalls zusätzlich das nichtionische Additiv (C).The pigment preparations according to the invention contain as essential constituents the pigment (A) and the water-soluble anionic surface-active additive (B) and, if desired, additionally the nonionic additive (C).

Als Komponente (A) können in den erfindungsgemäßen Pigmentzubereitungen organische oder anorganische Pigmente enthalten sein. Selbstverständlich können die Pigmentzubereitungen auch Mischungen verschiedener organischer oder verschiedener anorganischer Pigmente oder Mischungen von organischen und anorganischen Pigmenten enthalten.As component (A), organic or inorganic pigments may be present in the pigment preparations according to the invention. Of course, the pigment preparations may also contain mixtures of various organic or various inorganic pigments or mixtures of organic and inorganic pigments.

Die Pigmente liegen in feinteiliger Form vor. Die Pigmente haben dementsprechend üblicherweise mittlere Teilchengrößen von 0,1 bis 5 µmThe pigments are in finely divided form. Accordingly, the pigments usually have mean particle sizes of 0.1 to 5 μm

Bei den organischen Pigmenten handelt es sich üblicherweise um organische Bunt- und Schwarzpigmente. Anorganische Pigmente können ebenfalls Farbpigmente (Bunt-, Schwarz-und Weißpigmente) sowie Glanzpigmente und die üblicherweise als Füllstoffe eingesetzten anorganischen Pigmente sein.The organic pigments are usually organic colored and black pigments. Inorganic pigments may also be color pigments (colored, black and white pigments) as well as luster pigments and the inorganic pigments commonly used as fillers.

Im folgenden seien als Beispiele für geeignete organische Farbpigmente genannt - Monoazopigmente: C.l. Pigment Brown 25; C.l. Pigment Orange 5, 13, 36, 38, 64 und 67; C.l. Pigment Red 1, 2, 3, 4, 5, 8, 9, 12, 17, 22, 23, 31, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 51:1, 52:1, 52:2, 53, 53:1, 53:3, 57:1, 58:2, 58:4, 63, 112, 146, 148, 170, 175, 184, 185, 187, 191:1, 208, 210, 245, 247 und 251; C.I. Pigment Yellow 1, 3, 62, 65, 73, 74, 97, 120, 151, 154, 168, 181, 183 und 191; C.I. Pigment Violet 32; - Disazopigmente: C.I. Pigment Orange 16, 34, 44 und 72; C.I. Pigment Yellow 12, 13, 14, 16, 17, 81, 83, 106, 113, 126, 127, 155, 174, 176, 180 und 188; - Disazokondensationspigmente: C.I. Pigment Yellow 93, 95 und 128; C.I. Pigment Red 144, 166, 214, 220, 221, 242 und 262; C.I. Pigment Brown 23 und 41; - Anthanthronpigmente: C.l. Pigment Red 168; - Anthrachinonpigmente: C.l. Pigment Yellow 147, 177 und 199; C.l. Pigment Violet 31; - Anthrapyrimidinpigmente: C.I. Pigment Yellow 108; - Chinacridonpigmente: C.I. Pigment Orange 48 und 49; C.I. Pigment Red 122, 202, 206 und 209; C.I. Pigment Violet 19; - Chinophthalonpigmente: C.I. Pigment Yellow 138; - Diketopyrrolopyrrolpigmente: C.I. Pigment Orange 71, 73 und 81; C.I. Pigment Red 254, 255, 264, 270 und 272; - Dioxazinpigmente: C.I. Pigment Violet 23 und 37; C.I. Pigment Blue 80; - Flavanthronpigmente: C.I. Pigment Yellow 24; - Indanthronpigmente: C.I. Pigment Blue 60 und 64; - Isoindolinpigmente: C.I. Pigmente Orange 61 und 69; C.I. Pigment Red 260; C.I. Pigment Yellow 139 und 185; - Isoindolinonpigmente: C.I. Pigment Yellow 109, 110 und 173; - Isoviolanthronpigmente: C.I. Pigment Violet 31; - Metallkomplexpigmente: C.I. Pigment Red 257; C.I. Pigment Yellow 117, 129, 150, 153 und 177; C.I. Pigment Green 8; - Perinonpigmente: C.I. Pigment Orange 43; C.I. Pigment Red 194; - Perylenpigmente: C.I. Pigment Black 31 und 32; C.I. Pigment Red 123, 149, 178, 179, 190 und 224; C.I. Pigment Violet 29; - Phthalocyaninpigmente: C.l. Pigment Blue 15, 15:1, 15:2, 15:3, 15:4, 15:6 und 16; C.l. Pigment Green 7 und 36; - Pyranthronpigmente: C.l. Pigment Orange 51; C.l. Pigment Red 216; - Pyrazolochinazolonpigmente: C.l. Pigment Orange 67; C.l. Pigment Red 251; - Thioindigopigmente: C.l. Pigment Red 88 und 181; C.l. Pigment Violet 38; - Triarylcarboniumpigmente: C.I. Pigment Blue 1, 61 und 62; C.I. Pigment Green 1; C.I. Pigment Red 81, 81:1 und 169; C.I. Pigment Violet 1, 2, 3 und 27; - C.I. Pigment Black 1 (Anilinschwarz); - C.I. Pigment Yellow 101 (Aldazingelb); - C.I. Pigment Brown 22. In the following may be mentioned as examples of suitable organic color pigments - monoazo pigments: Cl Pigment Brown 25; Cl Pigment Orange 5, 13, 36, 38, 64 and 67; Cl Pigment Red 1, 2, 3, 4, 5, 8, 9, 12, 17, 22, 23, 31, 48: 1, 48: 2, 48: 3, 48: 4, 49, 49: 1, 51 : 1, 52: 1, 52: 2, 53, 53: 1, 53: 3, 57: 1, 58: 2, 58: 4, 63, 112, 146, 148, 170, 175, 184, 185, 187 , 191: 1, 208, 210, 245, 247 and 251; CI Pigment Yellow 1, 3, 62, 65, 73, 74, 97, 120, 151, 154, 168, 181, 183 and 191; CI Pigment Violet 32; - Disazo pigments: CI Pigment Orange 16, 34, 44 and 72; CI Pigment Yellow 12, 13, 14, 16, 17, 81, 83, 106, 113, 126, 127, 155, 174, 176, 180 and 188; - Disazo condensation pigments: CI Pigment Yellow 93, 95 and 128; CI Pigment Red 144, 166, 214, 220, 221, 242 and 262; CI Pigment Brown 23 and 41; - Anthanthrone pigments: Cl Pigment Red 168; - anthraquinone pigments: Cl Pigment Yellow 147, 177 and 199; Cl Pigment Violet 31; - Anthrapyrimidine pigments: CI Pigment Yellow 108; - Quinacridone pigments: CI Pigment Orange 48 and 49; CI Pigment Red 122, 202, 206 and 209; CI Pigment Violet 19; - Quinophthalone pigments: CI Pigment Yellow 138; Diketopyrrolopyrrole pigments: CI Pigment Orange 71, 73 and 81; CI Pigment Red 254, 255, 264, 270 and 272; - Dioxazine pigments: CI Pigment Violet 23 and 37; CI Pigment Blue 80; - flavanthrone pigments: CI Pigment Yellow 24; - Indanthrone pigments: CI Pigment Blue 60 and 64; - isoindoline pigments: CI pigments Orange 61 and 69; CI Pigment Red 260; CI Pigment Yellow 139 and 185; - Isoindolinone pigments: CI Pigment Yellow 109, 110 and 173; - isoviolanthrone pigments: CI Pigment Violet 31; - metal complex pigments: CI Pigment Red 257; CI Pigment Yellow 117, 129, 150, 153 and 177; CI Pigment Green 8; - Perinone pigments: CI Pigment Orange 43; CI Pigment Red 194; - Perylene pigments: CI Pigment Black 31 and 32; CI Pigment Red 123, 149, 178, 179, 190 and 224; CI Pigment Violet 29; Phthalocyanine pigments: Cl Pigment Blue 15, 15: 1, 15: 2, 15: 3, 15: 4, 15: 6 and 16; Cl Pigment Green 7 and 36; - Pyranthrone pigments: Cl Pigment Orange 51; Cl Pigment Red 216; - pyrazoloquinazolone pigments: Cl Pigment Orange 67; Cl Pigment Red 251; - Thioindigo pigments: Cl Pigment Red 88 and 181; Cl Pigment Violet 38; Triaryl carbonium pigments: CI Pigment Blue 1, 61 and 62; CI Pigment Green 1; CI Pigment Red 81, 81: 1 and 169; CI Pigment Violet 1, 2, 3 and 27; CI Pigment Black 1 (aniline black); CI Pigment Yellow 101 (aldazine yellow); CI Pigment Brown 22.

Geeignete anorganische Farbpigmente sind z.B.: - Weißpigmente: Titandioxid (C.I. Pigment White 6), Zinkweiß, Farbenzinkoxid; Zinksulfid, Lithopone; - Schwarzpigmente: Eisenoxidschwarz (C.I. Pigment Black 11), Eisen-Mangan-Schwarz, Spinellschwarz (C.I. Pigment Black 27); Ruß (C.I. Pigment Black 7); - Buntpigmente: Chromoxid, Chromoxidhydratgrün; Chromgrün (C.I. Pigment Green 48); Cobaltgrün (C.I. Pigment Green 50); Ultramaringrün; Kobaltblau (C.I. Pigment Blue 28 und 36; C.I. Pigment Blue 72); Ultramarinblau; Manganblau; Ultramarinviolett; Kobalt- und Manganviolett; Eisenoxidrot (C.l. Pigment Red 101); Cadmiumsulfoselenid (C.l. Pigment Red 108); Cersulfid (C.l. Pigment Red 265); Molybdatrot (C.l. Pigment Red 104); Ultramarinrot; Eisenoxidbraun (C.l. Pigment Brown 6 und 7), Mischbraun, Spinell- und Korundphasen (C.l. Pigment Brown 29, 31, 33, 34, 35,37,39 und 40), Chromtitangelb (C.l. Pigment Brown 24), Chromorange; Cersulfid (C.l. Pigment Orange 75); Eisenoxidgelb (C.l. Pigment Yellow 42); Nickeltitangelb (C.l. Pigment Yellow 53; C.l. Pigment Yellow 157, 158, 159, 160, 161, 162, 163, 164 und 189); Chromtitangelb; Spinellphasen (C.l. Pigment Yellow 119); Cadmiumsulfid und Cadmiumzinksulfid (C.l. Pigment Yellow 37 und 35); Chromgelb (C.l. Pigment Yellow 34); Bismutvanadat (C.l. Pigment Yellow 184). Suitable inorganic color pigments are, for example: - white pigments: Titanium dioxide (CI Pigment White 6), zinc white, colored zinc oxide; Zinc sulfide, lithopone; - black pigments: Iron oxide black (CI Pigment Black 11), iron manganese black, spinel black (CI Pigment Black 27); Carbon black (CI Pigment Black 7); - colored pigments: Chromium oxide, chromium oxide hydrate green; Chrome green (CI Pigment Green 48); Cobalt green (CI Pigment Green 50); Ultramarine green; Cobalt blue (CI Pigment Blue 28 and 36; CI Pigment Blue 72); Ultramarine blue; Manganese blue; Ultramarine violet; Cobalt and manganese violet; Iron oxide red (Cl Pigment Red 101); Cadmium sulfoselenide (Cl Pigment Red 108); Cerium sulphide (Cl Pigment Red 265); Molybdate red (Cl Pigment Red 104); ultramarine; Iron oxide brown (Cl Pigment Brown 6 and 7), mixed brown, spinel and corundum phases (Cl Pigment Brown 29, 31, 33, 34, 35, 37, 39 and 40), chrome titanium yellow (Cl Pigment Brown 24), chrome orange; Cerium sulphide (CI Pigment Orange 75); Iron oxide yellow (Cl Pigment Yellow 42); Nickel titanium yellow (Cl Pigment Yellow 53; CI Pigment Yellow 157, 158, 159, 160, 161, 162, 163, 164 and 189); Chromium titanium yellow; Spinel phases (Cl Pigment Yellow 119); Cadmium sulfide and cadmium zinc sulfide (Cl Pigment Yellow 37 and 35); Chrome yellow (Cl Pigment Yellow 34); Bismuth vanadate (Cl Pigment Yellow 184).

Als Beispiele für üblicherweise als Füllstoffe eingesetzte anorganische Pigmente seien transparentes Siliciumdioxid, Quarzmehl, Aluminiumoxid, Aluminiumhydroxid, natürliche Glimmer, natürliche und gefällte Kreide und Bariumsulfat genannt.Examples of inorganic pigments which are commonly used as fillers are transparent silica, quartz flour, alumina, aluminum hydroxide, natural mica, natural and precipitated chalk and barium sulfate.

Bei den Glanzpigmenten handelt es sich um einphasig oder mehrphasig aufgebaute plättchenförmige Pigmente, deren Farbenspiel durch das Zusammenspiel von Interferenz-, Reflexions- und Absorptionsphänomenen geprägt ist. Als Beispiele seien Aluminiumplättchen und ein- oder mehrfach, insbesondere mit Metalloxiden beschichtete Aluminium-, Eisenoxid-und Glimmerplättchen genannt.The luster pigments are single-phase or multi-phase platelet-shaped pigments whose color play is characterized by the interplay of interference, reflection and absorption phenomena. Examples which may be mentioned aluminum platelets and one or more times, especially coated with metal oxides, aluminum, iron oxide and mica platelets.

Als Komponente (B) enthalten die erfindungsgemäßen festen Pigmentzubereitungen wasserlösliche anionische oberflächenaktive Additive aus der Gruppe der teilweise bis vollständig mit Polyetheralkoholen oder deren einseitig endgruppenverschlossenen Derivaten veresterten Homo- und Copolmerisate von ethylenisch ungesättigten Monocarbonsäuren und/oder ethylenisch ungesättigten Dicarbonsäuren, die zusätzlich keine Säurefunktion enthaltende Vinylmonomere einpolymerisiert enthalten können und der Salze dieser Homo- und Copolymerisate.As component (B), the solid pigment preparations according to the invention contain water-soluble anionic surface-active additives from the group of partially to completely esterified with polyether alcohols or their one-sided endgruppenverschlossenen derivatives homopolymers and Copolmerisate of ethylenically unsaturated monocarboxylic acids and / or ethylenically unsaturated dicarboxylic acids which may contain in addition polymerized vinyl monomers containing no acid function and the salts of these homopolymers and copolymers ,

Als Beispiele für die carboxylgruppenhaltigen Monomere und die Vinylmonomere seien genannt:

  • Acrylsäure, Methacrylsäure und Crotonsäure;
  • Maleinsäure, Maleinsäurenanhydrid, Maleinsäuremonoester, Maleinsäuremonoamide, Umsetzungsprodukte von Maleinsäure mit Diaminen, die zu aminoxidgruppenhaltigen Derivaten oxidiert sein können, und Fumarsäure, wobei Maleinsäure, Maleinsäureanhydrid und Maleinsäuremonoamide bevorzugt sind;
  • Vinylaromaten, wie Styrol, Methylstyrol und Vinyltoluol; Ethylen, Propylen, Isobuten, Diisobuten und Butadien; Vinylether, wie Polyethylenglykolmonovinylether; Vinylester linearer oder verzweigter Monocarbonsäuren, wie Vinylacetat und Vinylpropionat; Alkylester und Arylester ethylenisch ungesättigter Monocarbonsäuren, insbesondere Acrylsäure- und Methacrylsäureester, wie Methyl-, Ethyl-, Propyl-, Isopropyl-, Butyl-, Pentyl-, Hexyl-, 2-Ethylhexyl-, Nonyl-, Lauryl- und Hydroxyethyl(meth)acrylat sowie Phenyl-, Naphthyl- und Benzyl(meth)acrylat; Dialkylester von ethylenisch ungesättigten Dicarbonsäuren, wie Dimethyl-, Diethyl-, Dipropyl-, Diisopropyl-, Dibutyl-, Dipentyl-, Dihexyl-, Di-2-ethylhexyl-, Dinonyl-, Dilauryl- und Di-2-hydroxyethylmaleinat und -fumarat; Vinylpyrrolidon; Acrylnitril und Methacrylnitril, wobei Styrol, Isobuten, Diisobuten, Acrylsäureester und Polyethylenglykolmonovinylether bevorzugt sind.
Examples of the carboxyl-containing monomers and the vinyl monomers are:
  • Acrylic acid, methacrylic acid and crotonic acid;
  • Maleic acid, maleic anhydride, maleic acid monoesters, maleic acid monoamides, reaction products of maleic acid with diamines which may be oxidized to derivatives containing amine oxide groups, and fumaric acid, with maleic acid, maleic anhydride and maleic acid monoamides being preferred;
  • Vinyl aromatics such as styrene, methylstyrene and vinyltoluene; Ethylene, propylene, isobutene, diisobutene and butadiene; Vinyl ethers, such as polyethylene glycol monovinyl ether; Vinyl esters of linear or branched monocarboxylic acids, such as vinyl acetate and vinyl propionate; Alkyl esters and aryl esters of ethylenically unsaturated monocarboxylic acids, especially acrylic and methacrylic esters, such as methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, 2-ethylhexyl, nonyl, lauryl and hydroxyethyl (meth) acrylate and phenyl, naphthyl and benzyl (meth) acrylate; Dialkyl esters of ethylenically unsaturated dicarboxylic acids, such as dimethyl, diethyl, dipropyl, diisopropyl, dibutyl, dipentyl, dihexyl, di-2-ethylhexyl, dinonyl, dilauryl and di-2-hydroxyethyl maleate and fumarate; vinylpyrrolidone; Acrylonitrile and methacrylonitrile, with styrene, isobutene, diisobutene, acrylic esters and polyethylene glycol monovinyl ethers being preferred.

Als Beispiele für bevorzugte Homopolymerisate dieser Monomere sind insbesondere Polyacrylsäuren zu nennen. Die Copolymerisate der genannten Monomere können aus zwei oder mehreren, insbesondere drei verschiedenen Monomeren aufgebaut sein. Es können statistische Copolymerisate, alternierende Copolymerisate, Blockcopolymerisate und Pfropfcopolymerisate vorliegen. Als bevorzugte Copolymerisate seien Styrol/Acrylsäure-, Acrylsäure/Maleinsäure-, Acrylsäure/Methacrylsäure-, Butadien/Acrylsäure-, Isobuten/Maleinsäure-, Diisobuten/Maleinsäure-und Styrol/Maleinsäure-Copolymerisate, die jeweils als zusätzliche Monomerbestandteile Acrylsäureester und/oder Maleinsäureester enthalten können, genannt.Examples of preferred homopolymers of these monomers are, in particular, polyacrylic acids. The copolymers of the monomers mentioned may be composed of two or more, in particular three, different monomers. There may be random copolymers, alternating copolymers, block copolymers and graft copolymers. Preferred copolymers are styrene / acrylic acid, acrylic acid / maleic acid, acrylic acid / methacrylic acid, butadiene / acrylic acid, isobutene / maleic acid, diisobutene / maleic acid and styrene / maleic acid copolymers, each of which contains acrylic acid esters and / or maleic acid esters as additional monomer constituents may contain, called.

Als Additive (B) werden die Alkoxylierungsprodukte der carboxylgruppenhaltigen Polymerisate verstanden.Additives (B) are understood as meaning the alkoxylation products of the carboxyl group-containing polymers.

Hierunter sind erfindungsgemäß die teilweise bis (soweit dies möglich ist) vollständig mit Polyetheralkoholen veresterten Polymerisate zu verstehen. In der Regel beträgt der Veresterungsgrad dieser Polymerisate 30 bis 80 mol-%.These include according to the invention the partially to (as far as is possible) completely esterified with polyether alcohols polymers. In general, the degree of esterification of these polymers is 30 to 80 mol%.

Für die Veresterung geeignet sind insbesondere die Polyetheralkohole selbst, vorzugsweise Polyethylenglykole und Polypropylenglykole, sowie deren einseitig endgruppenverschlossene Derivate, vor allem die entsprechenden Monoether, wie Monoarylether, z.B. Monophenylether, und insbesondere Mono-C1-C26-alkylether, z.B. mit Fettalkoholen veretherte Ethylen- und Propylenglykole, und die Polyetheramine, die z.B. durch Umwandlung einer teminalen OH-Gruppe der entsprechenden Polyetheralkohole oder durch Polyaddition von Alkylenoxiden an vorzugsweise primäre aliphatische Amine herstellbar sind. Bevorzugt sind dabei Polyethylenglykole, Polyethylenglykolmonoether und Polyetheramine. Die mittleren Molekulargewichte Mn der verwendeten Polyetheralkohole und ihrer Derivate liegen üblicherweise bei 200 bis 10 000.Particularly suitable for the esterification are the polyether alcohols themselves, preferably polyethylene glycols and polypropylene glycols, as well as their unilaterally end-capped derivatives, especially the corresponding monoethers, such as monoaryl ethers, eg monophenyl ethers, and in particular mono-C 1 -C 26 -alkyl ethers, for example ethylene etherified with fatty alcohols - And propylene glycols, and the polyether amines, which can be prepared, for example, by converting a teminalen OH group of the corresponding polyether or by polyaddition of alkylene oxides to preferably primary aliphatic amines. Polyethylene glycols, polyethylene glycol monoethers and polyether amines are preferred. The average molecular weights M n of the polyether alcohols and their derivatives used are usually 200 to 10,000.

Durch Steuerung des Verhältnisses von polaren zu unpolaren Gruppen können die oberflächenaktiven Eigenschaften der Additive (B) gezielt eingestellt werden.By controlling the ratio of polar to non-polar groups, the surface-active properties of the additives (B) can be adjusted in a targeted manner.

Derartige anionische oberflächenaktive Additive (B) sind ebenfalls bekannt und im Handel erhältlich.Such anionic surface-active additives (B) are also known and commercially available.

Die erfindungsgemäßen Pigmentzubereitungen können zusätzlich noch nichtionische oberflächenaktive Additive auf der Basis von Polyethern als Komponente (C) enthalten.The pigment preparations according to the invention may additionally contain nonionic surface-active additives based on polyethers as component (C).

Neben den ungemischten Polyalkylenoxiden, bevorzugt C2-C4-Alkylenoxiden und phenylsubsitutierten C2-C4-Alkylenoxiden, insbesondere Polyethylenoxiden, Polypropylenoxiden und Poly(phenylethylenoxiden), sind vor allem Blockcopolymerisate, insbesondere Polypropylenoxid-und Polyethylenoxidblöcke oder Poly(phenylethylenoxid)- und Polyethylenoxidblöcke aufweisende Polymerisate, und auch statistische Copolymerisate dieser Alkylenoxide geeignet.In addition to the unmixed polyalkylene oxides, preferably C 2 -C 4 -alkylene oxides and phenylsubstituted C 2 -C 4 -alkylene oxides, in particular polyethyleneoxides, polypropyleneoxides and poly (phenylethyleneoxides), especially block copolymers, in particular polypropylene oxide and polyethylene oxide blocks or poly (phenylethylene oxide) and Polyethylene oxide blocks having polymers, and also random copolymers of these alkylene oxides suitable.

Diese Polyalkylenoxide können durch Polyaddition der Alkylenoxide an Startermoleküle, wie an gesättigte oder ungesättigte aliphatische und aromatische Alkohole, Phenol oder Naphthol, das jeweils durch Alkyl, insbesondere C1-C12-Alkyl, vorzugsweise C4-C12- bzw. C1-C4-Alkyl, substituiert sein kann, gesättigte oder ungesättigte aliphatische und aromatische Amine, gesättigte oder ungesättigte aliphatische Carbonsäuren und Carbonsäureamide hergestellt werden. Üblicherweise werden 1 bis 300 mol, bevorzugt 3 bis 150 mol, Alkylenoxid je mol Startermolekül eingesetzt.These polyalkylene oxides can be prepared by polyaddition of the alkylene oxides onto starter molecules, such as saturated or unsaturated aliphatic and aromatic alcohols, phenol or naphthol, which are each represented by alkyl, in particular C 1 -C 12 -alkyl, preferably C 4 -C 12 - or C 1 - C 4 alkyl, substituted, saturated or unsaturated aliphatic and aromatic amines, saturated or unsaturated aliphatic carboxylic acids and carboxylic acid amides can be prepared. Usually, 1 to 300 mol, preferably 3 to 150 mol, of alkylene oxide are used per mole of starter molecule.

Geeignete aliphatische Alkohole enthalten dabei in der Regel 6 bis 26 C-Atome, bevorzugt 8 bis 18 C-Atome, und können unverzweigt, verzweigt oder cyclisch aufgebaut sein. Als Beispiele seien Octanol, Nonanol, Decanol, Isodecanol, Undecanol, Dodecanol, 2-Butyloctanol, Tridecanol, Isotridecanol, Tetradecanol, Pentadecanol, Hexadecanol (Cetylalkohol), 2-Hexyldecanol, Heptadecanol, Octadecanol (Stearylalkohol), 2-Heptylundecanol, 2-Octyldecanol, 2-Nonyltridecanol, 2-Decyltetradecanol, Oleylalkohol und 9-Octadecenol sowie auch Mischungen dieser Alkohole, wie C8/C10-, C13/C15- und C16/C18-Alkohole, und Cyclopentanol und Cyclohexanol genannt. Von besonderem Interesse sind die gesättigten und ungesättigten Fettalkohole, die durch Fettspaltung und Reduktion aus natürlichen Rohstoffen gewonnen werden, und die synthetischen Fettalkohole aus der Oxosynthese. Die Alkylenoxidaddukte an diese Alkohole weisen üblicherweise mittlere Molekulargewichte Mn von 200 bis 5000 auf.Suitable aliphatic alcohols generally contain 6 to 26 C atoms, preferably 8 to 18 C atoms, and may be unbranched, branched or cyclic. Examples which may be mentioned are octanol, nonanol, decanol, isodecanol, undecanol, dodecanol, 2-butyloctanol, tridecanol, isotridecanol, tetradecanol, pentadecanol, hexadecanol (cetyl alcohol), 2-hexyldecanol, heptadecanol, octadecanol (stearyl alcohol), 2-heptylundecanol, 2-octyldecanol , 2-nonyltridecanol, 2-decyltetradecanol, oleyl alcohol and 9-octadecenol, as well as mixtures of these alcohols, such as C 8 / C 10 , C 13 / C 15 and C 16 / C 18 alcohols, and cyclopentanol and cyclohexanol. Of particular interest are the saturated and unsaturated fatty alcohols obtained by lipid cleavage and reduction from natural raw materials, and the synthetic fatty alcohols from the oxo process. The alkylene oxide adducts to these alcohols usually have average molecular weights M n of from 200 to 5,000.

Als Beispiele für die obengenannten aromatischen Alkohole seien neben unsubstituiertem Phenol und α- und β-Naphthol Hexylphenol, Heptylphenol, Octylphenol, Nonylphenol, Isononylphenol, Undecylphenol, Dodecylphenol, Di- und Tributylphenol und Dinonylphenol genannt.Examples of the abovementioned aromatic alcohols include unsubstituted phenol and α- and β-naphthol, hexylphenol, heptylphenol, octylphenol, nonylphenol, isononylphenol, undecylphenol, dodecylphenol, di- and tributylphenol and dinonylphenol.

Geeignete aliphatische Amine entsprechen den oben aufgeführten aliphatischen Alkoholen. Besondere Bedeutung haben auch hier die gesättigten und ungesättigten Fettamine, die vorzugsweise 14 bis 20 C-Atome aufweisen. Als aromatische Amine seien beispielsweise Anilin und seine Derivate genannt.Suitable aliphatic amines correspond to the aliphatic alcohols listed above. Of particular importance here are the saturated and unsaturated fatty amines, which preferably have 14 to 20 carbon atoms. Examples of aromatic amines are aniline and its derivatives.

Als aliphatische Carbonsäuren eignen sich insbesondere gesättigte und ungesättigte Fettsäuren, die bevorzugt 14 bis 20 C-Atome enthalten, und hydrierte, teilhydrierte und unhydrierte Harzsäuren sowie auch mehrwertige Carbonsäuren, z.B. Dicarbonsäuren, wie Maleinsäure.Particularly suitable aliphatic carboxylic acids are saturated and unsaturated fatty acids, preferably containing 14 to 20 carbon atoms, and hydrogenated, partially hydrogenated and unhydrogenated resin acids, as well as polybasic carboxylic acids, e.g. Dicarboxylic acids, such as maleic acid.

Geeignete Carbonsäureamide leiten sich von diesen Carbonsäuren ab.Suitable carboxylic acid amides are derived from these carboxylic acids.

Neben den Alkylenoxidaddukten an die einwertigen Amine und Alkohole sind die Alkylenoxidaddukte an mindestens bifunktionelle Amine und Alkohole von ganz besonderem Interesse.Besides the alkylene oxide adducts to the monohydric amines and alcohols, the alkylene oxide adducts to at least bifunctional amines and alcohols are of particular interest.

Als mindestens bifunktionelle Amine sind zwei- bis fünfwertige Amine bevorzugt, die insbesondere der Formel H2N-(R-NR1)n-H (R: C2-C6-Alkylen; R1: Wasserstoff oder C1-C6-Alkyl; n: 1 bis 5) entsprechen. Im einzelnen seien beispielhaft genannt: Ethylendiamin, Diethylentriamin, Triethylentetramin, Tetraethylenpentamin, Propylendiamin-1,3, Dipropylentriamin, 3-Amino-1-ethylen-aminopropan, Hexamethylendiamin, Dihexamethylentriamin, 1,6-Bis-(3-aminopropylamino)-hexan und N-Methyldipropylentriamin, wobei Hexamethylendiamin und Diethylentriamin besonders bevorzugt sind und Ethylendiamin ganz besonders bevorzugt ist.As at least bifunctional amines, divalent to pentavalent amines are preferred, in particular of the formula H 2 N- (R-NR 1 ) n -H (R: C 2 -C 6 -alkylene; R 1 : hydrogen or C 1 -C 6 Alkyl; n: 1 to 5). Specific examples are: ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, propylenediamine-1,3, dipropylenetriamine, 3-amino-1-ethylene-aminopropane, hexamethylenediamine, dihexamethylenetriamine, 1,6-bis (3-aminopropylamino) -hexane and N-methyldipropylenetriamine, with hexamethylenediamine and diethylenetriamine being particularly preferred and ethylenediamine being most preferred.

Vorzugsweise werden diese Amine zunächst mit Propylenoxid und anschließend mit Ethylenoxid umgesetzt. Der Gehalt der Blockcopolymerisate an Ethylenoxid liegt üblicherweise bei etwa 10 bis 90 Gew.-%.Preferably, these amines are first reacted with propylene oxide and then with ethylene oxide. The content of the block copolymers of ethylene oxide is usually about 10 to 90% by weight.

Die Blockcopolymerisate auf Basis mehrwertiger Amine weisen in der Regel mittlere Molekulargewichte Mn von 1000 bis 40 000, vorzugsweise 1500 bis 30 000, auf.The block copolymers based on polyvalent amines generally have average molecular weights M n of from 1,000 to 40,000, preferably from 1,500 to 30,000.

Als mindestens bifunktionelle Alkohole sind zwei- bis fünfwertige Alkohole bevorzugt. Beispielsweise seien C2-C6-Alkylenglykole und die entsprechenden Di- und Polyalkylenglykole, wie Ethylenglykol, Propylenglykol-1,2 und -1,3, Butylenglykol-1,2 und -1,4, Hexylenglykol-1,6, Dipropylenglykol und Polyethylenglykol, Glycerin und Pentaerythrit genannt, wobei Ethylenglykol und Polyethylenglykol besonders bevorzugt und Propylenglykol und Dipropylenglykol ganz besonders bevorzugt sind.As at least bifunctional alcohols dihydric to pentahydric alcohols are preferred. Examples which may be C 2 -C 6 alkylene glycols and the corresponding di- and polyalkylene glycols such as ethylene glycol, propylene glycol-1,2 and -1,3, butylene glycol-1,2 and -1,4, hexylene glycol-1,6, dipropylene glycol and Polyethylene glycol, glycerol and pentaerythritol mentioned, with ethylene glycol and polyethylene glycol being particularly preferred and propylene glycol and dipropylene glycol are very particularly preferred.

Besonders bevorzugte Alkylenoxidaddukte an mindestens bifunktionelle Alkohole weisen einen zentralen Polypropylenoxidblock auf, gehen also von einem Propylenglykol oder Polypropylenglykol aus, das zunächst mit weiterem Propylenoxid und dann mit Ethylenoxid umgesetzt wird. Der Gehalt der Blockcopolymerisate an Ethylenoxid liegt üblicherweise bei 10 bis 90 Gew. %.Particularly preferred alkylene oxide adducts with at least bifunctional alcohols have a central polypropylene oxide block, that is to say they start from a propylene glycol or polypropylene glycol which is reacted first with further propylene oxide and then with ethylene oxide. The content of the block copolymers of ethylene oxide is usually from 10 to 90% by weight.

Die Blockcopolymerisate auf Basis mehrwertiger Alkohole weisen im allgemeinen mittlere Molekulargewichte Mn von 1000 bis 20 000, vorzugsweise 1000 bis 15 000, auf.The polyhydric alcohol block copolymers generally have average molecular weights M n of from 1,000 to 20,000, preferably from 1,000 to 15,000.

Derartige Alkylenoxidblockcopolymerisate sind bekannt und im Handel z.B. unter den Namen Tetronic® und Pluronic® (BASF) erhältlich.Such alkylene oxide are known and commercially available for example under the name Tetronic ® and Pluronic ® (BASF).

Die erfindungsgemäßen Pigmentzubereitungen enthalten 60 bis 95 Gew.-% der Komponente (A), 5 bis 40 Gew.-% der Komponente (B) und 0 bis 20 Gew.-% der Komponente (C).The pigment preparations according to the invention contain 60 to 95% by weight of component (A), 5 to 40% by weight of component (B) and 0 to 20% by weight of component (C).

Enthalten die erfindungsgemäßen Pigmentzubereitungen kein nichtionisches Additiv (C), so sind abhängig von der Art des enthaltenen Pigments folgende Zusammensetzungen bevorzugt:

  • 70 bis 90 Gew.-%, insbesondere 70 bis 85 Gew.-%, organisches Pigment (A) und 10 bis 30 Gew.-%, insbesondere 15 bis 30 Gew.-%, Additiv (B);
  • 60 bis 80 Gew.-%, insbesondere 60 bis 75 Gew.-%, transparentes Eisenoxidpigment (A) und 20 bis 40 Gew.-%, insbesondere 25 bis 40 Gew.-%, Additiv (B);
  • 70 bis 95 Gew.-%, insbesondere 75 bis 95 Gew.-%, anorganisches Pigment (A) (ausgenommen transparente Eisenoxidpigmente) und 5 bis 30 Gew.-%, insbesondere 5 bis 25 Gew.-%, Additiv (B).
If the pigment preparations according to the invention contain no nonionic additive (C), the following compositions are preferred, depending on the type of pigment contained:
  • 70 to 90 wt .-%, in particular 70 to 85 wt .-%, organic pigment (A) and 10 to 30 wt .-%, in particular 15 to 30 wt .-%, additive (B);
  • 60 to 80 wt .-%, in particular 60 to 75 wt .-%, transparent iron oxide pigment (A) and 20 to 40 wt .-%, in particular 25 to 40 wt .-%, additive (B);
  • 70 to 95 wt .-%, in particular 75 to 95 wt .-%, inorganic pigment (A) (except transparent iron oxide pigments) and 5 to 30 wt .-%, in particular 5 to 25 wt .-%, additive (B).

Ist ein nichtionisches Additiv (C) enthalten, so liegt die Zusammensetzung der erfindungsgemäßen Pigmentzubereitungen vorzugsweise bei 60 bis 85 Gew.-% des Pigments (A), 5 bis 20 Gew.-% des anionischen Additivs (B) und 5 bis 15 Gew.-% des nichtionischen Additivs (C).If a nonionic additive (C) is present, the composition of the pigment preparations according to the invention is preferably from 60 to 85% by weight of the pigment (A), from 5 to 20% by weight of the anionic additive (B) and from 5 to 15% by weight. -% of the nonionic additive (C).

Die erfindungsgemäßen Pigmentzubereitungen können vorteilhaft nach dem ebenfalls erfindungsgemäßen Herstellungsverfahren erhalten werden, indem man das Pigment (A) zunächst in wäßriger, zumindest einen Teil des Additivs (B) und gegebenenfalls des Additivs (C) enthaltenden Suspension einer Naßzerkleinerung unterwirft und die Suspension dann, gegebenenfalls nach Zugabe der restlichen Menge Additiv (B) und gegebenenfalls (C), trocknet.The pigment preparations according to the invention can advantageously be obtained by the preparation process likewise according to the invention by subjecting the pigment (A) initially to wet comminution in aqueous suspension containing at least part of the additive (B) and optionally of the additive (C) and then, if appropriate after addition of the remaining amount of additive (B) and optionally (C), dried.

Das Pigment (A) kann bei dem erfindungsgemäßen Verfahren als trockenes Pulver oder in Form eines Preßkuchens eingesetzt werden.The pigment (A) can be used in the inventive method as a dry powder or in the form of a press cake.

Bei dem eingesetzten Pigment (A) handelt es sich vorzugsweise um ein gefinishtes Produkt, d.h. die Primärkomgröße des Pigments ist bereits auf den für die Anwendung gewünschten Wert eingestellt. Dieser Pigmentfinish empfiehlt sich insbesondere bei organischen Pigmenten, da die bei der Pigmentsynthese anfallende Rohware in der Regel nicht direkt für die Anwendung geeignet ist. Bei anorganischen Pigmenten, z.B. bei Oxid- und Bismutvanadatpigmenten, kann die Einstellung der Primärkomgröße auch bei der Pigmentsynthese erfolgen, so daß die anfallenden Pigmentsuspensionen direkt beim erfindungsgemäßen Verfahren eingesetzt werden können.The pigment (A) used is preferably a finished product, i. the primary grain size of the pigment is already set to the value desired for the application. This pigment finish is particularly recommended in the case of organic pigments, since the raw material obtained during pigment synthesis is generally not suitable for the application. For inorganic pigments, e.g. in the case of oxide and bismuth vanadate pigments, the adjustment of the primary grain size can also be carried out during pigment synthesis, so that the resulting pigment suspensions can be used directly in the process according to the invention.

Da das gefinishte Pigment (A) bei der Trocknung bzw. auf dem Filteraggregat üblicherweise wieder reagglomeriert, wird es in wäßriger Suspension einer Naßzerkleinerung, z.B. einer Mahlung in einer Rührwerkskugelmühle, unterzogen.Since the finished pigment (A) usually reagglomerates again during drying or on the filter unit, it is subjected to wet comminution in aqueous suspension, e.g. grinding in a stirred ball mill.

Bei der Naßzerkleinerung sollte zumindest ein Teil des in der fertigen Pigmentzubereitung enthaltenen Additivs (B und gegebenenfalls C) anwesend sein, vorzugsweise setzt man die gesamte Menge Additiv (B und gegebenenfalls C) vor der Naßzerkleinerung zu.In the case of wet comminution, at least some of the additive (B and optionally C) present in the finished pigment preparation should be present, preferably the entire amount of additive (B and if appropriate C) is added before the wet comminution.

In Abhängigkeit von der gewählten Trocknungsart - Sprühgranulierung und Wirbelschichttrocknung, Sprühtrocknung, Trocknung im Schaufeltrockner, Eindampfen und anschließende Zerkleinerung - kann die Teilchengröße der erfindungsgemäßen Pigmentzubereitungen gezielt gesteuert werden.Depending on the selected type of drying - spray granulation and fluidized-bed drying, spray drying, drying in a paddle dryer, evaporation and subsequent comminution - the particle size of the pigment preparations according to the invention can be controlled in a targeted manner.

Bei Sprüh- und Wirbeischichtgranulierung können grobteilige Granulate mit mittleren Korngrößen von 50 bis 5000 µm, insbesondere 100 bis 1000 µm, erhalten werden. Durch Sprühtrocknung werden üblicherweise Granulate mit mittleren Korngrößen < 20 µm erhalten. Feinteilige Zubereitungen können bei der Trocknung im Schaufeltrockner und beim Eindampfen mit anschließender Mahlung erhalten werden. Vorzugsweise liegen die erfindungsgemäßen Pigmentzubereitungen jedoch in Granulatform vor.In the case of spray and fluidized-bed granulation, coarse-particle granules with mean particle sizes of 50 to 5000 μm, in particular 100 to 1000 μm, can be obtained. By spray drying usually granules are obtained with average particle sizes <20 microns. Finely divided preparations can be obtained during drying in the paddle dryer and during evaporation with subsequent grinding. Preferably, however, the pigment preparations according to the invention are in granular form.

Die Sprühgranulierung führt man vorzugsweise in einem Sprühturm mit Einstoffdüse durch. Die Suspension wird hier in Form größerer Tropfen versprüht, wobei das Wasser verdampft. Die Additive schmelzen bei den Trocknungstemperaturen auf und führen so zur Bildung eines weitgehend kugelförmigen Granulats mit besonders glatter Oberfläche (BET-Werte von in der Regel ≤ 15 m2/g, insbesondere ≤ 10 m2/g).The spray granulation is preferably carried out in a spray tower with a single-fluid nozzle. The suspension is sprayed here in the form of larger drops, the water evaporates. The additives melt at the drying temperatures and thus lead to the formation of a largely spherical granules with a particularly smooth surface (BET values of generally ≦ 15 m 2 / g, in particular ≦ 10 m 2 / g).

Die Gaseintrittstemperatur im Sprühturm liegt im allgemeinen bei 180 bis 300°C, bevorzugt bei 150 bis 300°C. Die Gasaustrittstemperatur beträgt in der Regel 70 bis 150°C, vorzugsweise 70 bis 130°C.The gas inlet temperature in the spray tower is generally from 180 to 300 ° C, preferably from 150 to 300 ° C. The gas outlet temperature is usually 70 to 150 ° C, preferably 70 to 130 ° C.

Die Restfeuchte des erhaltenen Pigmentgranulats liegt bevorzugt bei < 2 Gew.-%.The residual moisture content of the pigment granules obtained is preferably <2% by weight.

Die erfindungsgemäßen Pigmentzubereitungen zeichnen sich bei der Anwendung in eine flüssige Phase aufweisende Anwendungsmedien durch ihre hervorragenden, den flüssigen Pigmentpräparationen vergleichbaren, koloristischen Eigenschaften, insbesondere ihre Farbstärke und Brillanz, ihren Farbton und ihr Deckvermögen, und vor allem durch ihr Stir-in-Verhalten aus, d.h. sie können mit sehr geringem Energieeintrag durch einfaches Einrühren oder Schütteln in den Anwendungsmedien verteilt werden. Dies gilt insbesondere für die grobteiligen Pigmentgranulate, die die bevorzugte Ausführungsform der erfindungsgemäßen Pigmentzubereitungen darstellen.The pigment preparations according to the invention are characterized by their excellent application properties in a liquid phase comparable color properties, in particular their color strength and brilliance, their hue and hiding power, and especially by their stir-in behavior, ie they can be distributed with very little energy input by simply stirring or shaking in the application media. This applies in particular to the coarse-particle pigment granules which constitute the preferred embodiment of the pigment preparations according to the invention.

Im Vergleich zu flüssigen Pigmentpräparationen weisen die erfindungsgemäßen Pigmentzubereitungen zudem folgende Vorteile auf: Sie haben einen höheren Pigmentgehalt. Während flüssige Präparationen bei der Lagerung zu Viskositätsänderungen neigen und mit Konservierungsmitteln und Mitteln zur Erhöhung der Gefrier- und/oder Eintrocknungsbeständigkeit versetzt werden müssen, zeigen die erfindungsgemäßen Pigmentzubereitungen sehr gute Lagerstabilität. Sie sind hinsichtlich Verpackung, Lagerung und Transport wirtschaftlich und ökologisch vorteilhaft. Da sie lösungsmittelfrei sind, weisen sie höhere Flexibilität in der Anwendung auf.In comparison to liquid pigment preparations, the pigment preparations according to the invention also have the following advantages: they have a higher pigment content. While liquid preparations tend to change in viscosity during storage and must be mixed with preservatives and agents to increase the freeze and / or drying resistance, the pigment preparations according to the invention show very good storage stability. They are economically and ecologically advantageous in terms of packaging, storage and transport. Since they are solvent-free, they have higher flexibility in the application.

Die erfindungsgemäßen Pigmentzubereitungen in Granulatform zeichnen sich durch ausgezeichnete Abriebfestigkeit, geringe Kompaktierungs- bzw. Verklumpungsneigung, gleichmäßige Kornverteilung, gute Schütt-, Riesel- und Dosierfähigkeit sowie Staubfreiheit bei Handling und Applikation aus.The pigment preparations according to the invention in granular form are characterized by excellent abrasion resistance, low compaction tendency or agglomeration, uniform grain distribution, good pourability, pourability and metering capability as well as dust-free handling and application.

Die erfindungsgemäßen Pigmentzubereitungen eignen sich hervorragend zur Einfärbung von hochmolekularen organischen und anorganischen Materialien jeglicher Art. Flüssige Anwendungsmedien können dabei auch rein wäßrig sein, Mischungen von Wasser und organischen Lösungsmitteln, z.B. Alkoholen, enthalten oder nur auf organischen Lösungsmitteln, wie Alkoholen, Glykolethern, Ketonen, z.B. Methylethylketon, Amiden, z.B. N-Methylpyrrolidon und Dimethylformamid, Estern, z.B. Essigsäureethyl- und -butylester und Methoxypropylacetat, aromatischen oder aliphatischen Kohlenwasserstoffen, z.B. Xylol, Mineralöl und Benzin, basieren.The pigment preparations according to the invention are outstandingly suitable for coloring high molecular weight organic and inorganic materials of any kind. Liquid application media can also be purely aqueous, mixtures of water and organic solvents, e.g. Alcohols, or only on organic solvents, such as alcohols, glycol ethers, ketones, e.g. Methyl ethyl ketone, amides, e.g. N-methylpyrrolidone and dimethylformamide, esters, e.g. Ethyl acetate and butyl ester and methoxypropyl acetate, aromatic or aliphatic hydrocarbons, e.g. Xylene, mineral oil and gasoline based.

Gewünschtenfalls können die Zubereitungen zunächst in ein mit dem jeweiligen Anwendungsmedium verträgliches Lösungsmittel eingerührt werden, was wiederum mit sehr geringem Energieeintrag möglich ist, und dann in dieses Anwendungsmedium eingetragen werden. So können z.B. Aufschlämmungen von Pigmentzubereitungen in Glykolen oder sonstigen in der Lackindustrie üblichen Lösungsmitteln, wie Methoxypropylacetat, verwendet werden, um auf wäßrige Systeme abgestimmte Pigmentzubereitungen mit kohlenwasserstoffbasierenden Systemen oder Systemen auf Nitrocellulosebasis verträglich zu machen.If desired, the preparations may first be stirred into a solvent which is compatible with the respective application medium, which in turn is possible with very little input of energy, and then introduced into this application medium. Thus, e.g. Slurries of pigment preparations in glycols or other common solvents in the paint industry, such as methoxypropyl acetate, may be used to render aqueous based pigment formulations compatible with hydrocarbon based or nitrocellulose based systems.

Als Beispiele für Materialien, die mit den erfindungsgemäßen Pigmentzubereitungen eingefärbt werden können, seien genannt: Lacke, z.B. Bautenlacke, Industrielacke, Fahrzeuglacke, strahlungshärtbare Lacke; Anstrichmittel, sowohl für den Bautenaußen- als auch -innenbereich, z.B. Holzanstrichmittel, Kalkfarben, Leimfarben, Dispersionsfarben; Druckfarben, z.B. Offsetdruckfarben, Flexodruckfarben, Toluoltiefdruckfarben, Textildruckfarben, strahlungshärtbare Druckfarben; Tinten, auch Ink-Jet-Tinten; Colorfilter; Baustoffe (üblicherweise wird erst nach trockenem Vermischen von Baustoff und Pigmentgranulat Wasser zugesetzt), z.B. Silikatputzsysteme, Zement, Beton, Mörtel, Gips; Asphalt, Dichtungsmassen; cellulosehaltige Materialien, z.B. Papier, Pappe, Karton, Holz und Holzwerkstoffe, die lackiert oder anderweitig beschichtet sein können; Klebstoffe; filmbildende polymere Schutzkolloide, wie sie beispielsweise in der Pharmaindustrie verwendet werden; kosmetische Artikel; Detergentien.As examples of materials which can be colored with the pigment preparations according to the invention are: lacquers, e.g. Building coatings, industrial coatings, vehicle coatings, radiation-curable coatings; Paints, both exterior and interior, e.g. Wood paints, lime paints, glues, emulsion paints; Printing inks, e.g. Offset inks, flexographic inks, toluene gravure inks, textile inks, radiation curable inks; Inks, including ink-jet inks; Color filter; Building materials (usually water is added only after dry mixing of building material and pigment granules), e.g. Silicate plaster systems, cement, concrete, mortar, gypsum; Asphalt, sealants; cellulosic materials, e.g. Paper, cardboard, cardboard, wood and wood-based materials that may be painted or otherwise coated; adhesives; film-forming polymeric protective colloids, such as those used in the pharmaceutical industry; cosmetic articles; Detergents.

Die erfindungsgemäßen Pigmentzubereitungen sind auch hervorragend zur Einfärbung von Kunststoffen geeignet. Beispielhaft seien hier folgende Kunststoffklassen und Kunststofftypen genannt:

  • abgewandelte Naturstoffe:
    • Duroplaste, z.B. Casein-Kunststoffe; Thermoplaste, z.B. Cellulosenitrat, Celluloseacetat, Cellulosemischester und Celluloseether;
  • synthetische Kunststoffe:
    • Polykondensate: Duroplaste, z.B. Phenolharz, Harnstoffharz, Thioharnstoffharz, Melaminharz, ungesättigtes Polyesterharz, Allylharz, Silicon, Polyimid und Polybenzimidazol; Thermoplaste, z.B. Polyamid, Polycarbonat, Polyester, Polyphenylenoxid, Polysulfon und Polyvinylacetal;
    • Polymerisate: Thermoplaste, z.B. Polyolefine, wie Polyethylen, Polypropylen, Poly-1-buten und Poly-4-methyl-1-penten, Ionomere, Polyvinylchlorid, Polyvinylidenchlorid, Polymethylmethacrylat, Polyacrylnitril, Polystyrol, Polyacetal, Fluorkunststoffe, Polyvinylalkohol, Polyvinylacetat und Poly-p-xylylen sowie Copolymere, wie EthylenNinylacetat-Copolymere, Styrol/Acrylnitril-Copolymere, Acrylnitril/Butadien/Styrol-Copolymere, Polyethylenglykolterephthalat und Polybutylenglykolterephthalat;
    • Polyaddukte: Duroplaste, z.B. Epoxidharz und vernetzte Polyurethane; Thermoplaste, z.B. lineare Polyurethane und chlorierte Polyether.
The pigment preparations according to the invention are also outstandingly suitable for coloring plastics. By way of example, the following plastic classes and types of plastics may be mentioned here:
  • modified natural substances:
    • Thermosets, eg casein plastics; Thermoplastics, eg cellulose nitrate, cellulose acetate, cellulose mixed esters and cellulose ethers;
  • synthetic plastics:
    • Polycondensates: thermosets, eg phenol resin, urea resin, thiourea resin, melamine resin, unsaturated polyester resin, allyl resin, silicone, polyimide and polybenzimidazole; Thermoplastics, for example polyamide, polycarbonate, polyester, polyphenylene oxide, polysulfone and polyvinyl acetal;
    • Polymers: thermoplastics, for example polyolefins, such as polyethylene, polypropylene, poly-1-butene and poly-4-methyl-1-pentene, ionomers, polyvinyl chloride, polyvinylidene chloride, polymethyl methacrylate, polyacrylonitrile, polystyrene, polyacetal, fluoroplastics, polyvinyl alcohol, polyvinyl acetate and polyvinyl chloride. p-xylylene and copolymers such as ethylene-vinyl acetate copolymers, styrene-acrylonitrile copolymers, acrylonitrile-butadiene-styrene copolymers, polyethylene glycol terephthalate and polybutylene glycol terephthalate;
    • Polyadducts: thermosets, eg epoxy resin and crosslinked polyurethanes; Thermoplastics, eg linear polyurethanes and chlorinated polyethers.

Die Kunststoffe können vorteilhaft unter geringem Energieeintrag, z.B. durch gemeinsames Extrudieren (vorzugsweise mit einem Ein- oder Zweischneckenextruder), Walzen, Kneten oder Mahlen, mit den erfindungsgemäßen Pigmentzubereitungen eingefärbt werden. Sie können dabei als plastische Massen oder Schmelzen vorliegen und zu Kunststofformkörpern, Folien und Fasern verarbeitet werden.The plastics can advantageously be produced with low energy input, e.g. by co-extrusion (preferably with a single- or twin-screw extruder), rolling, kneading or milling, be colored with the pigment preparations of the invention. They can be present as plastic masses or melts and processed into plastic moldings, films and fibers.

Die erfindungsgemäßen Pigmentzubereitungen zeichnen sich auch bei der Kunststoffeinfärbung durch insgesamt vorteilhafte Anwendungseigenschaften, vor allem gute koloristische Eigenschaften, insbesondere hohe Farbstärke und Brillanz, und die guten rheologischen Eigenschaften der mit ihnen eingefärbten Kunststoffe, insbesondere niedrige Druckfilterwerte (hohe Filterstandszeiten) und gute Verspinnbarkeit, aus.The pigment preparations of the invention are also characterized in the plastic coloring by overall advantageous application properties, especially good coloristic properties, especially high color strength and brilliance, and the good rheological properties of the plastics dyed with them, in particular low pressure filter values (high filter life) and good spinnability from.

BeispieleExamples Herstellung und Prüfung von erfindungsgemäßen PigmentzubereitungenProduction and testing of pigment preparations according to the invention

Die Herstellung der Pigmentzubereitungen erfolgte, indem eine Suspension von x g gefinishtem Pigment (A), y g Additiv (B) und gegebenenfalls z g Additiv (C) in 150 g Wasser (bei pH-Werten < 7 durch Zugabe von 25 gew.-%iger Natronlauge auf einen pH-Wert von 7 eingestellt) in einer Kugelmühle auf einen d50-Wert von < 1 µm gemahlen und dann in einem Laborsprühturm (Mini Spray Dryer B-191, Fa. Büchi; Gaseintrittstemperatur 170°C, Gasaustrittstemperatur 70°C) sprühgetrocknet wurde.The pigment preparations were prepared by adding a suspension of xg-finished pigment (A), yg additive (B) and optionally additive (C) in 150 g of water (at pH <7 by adding 25% strength by weight sodium hydroxide solution to a pH value of 7) in a ball mill to a d 50 value of <1 μm and then in a laboratory spray tower (Mini Spray Dryer B-191, Büchi, gas inlet temperature 170 ° C, gas outlet temperature 70 ° C) was spray-dried.

Die Bestimmung der Farbstärke der Pigmentzubereitungen erfolgte farbmetrisch in der Weißaufhellung (Angabe der Färbeäquivalente FAE, DIN 55986) in einer wasserbasierenden Dispersionsfarbe. Dazu wurde eine Mischung von jeweils 1,25 g Pigmentzubereitung und 50 g eines wasserbasierenden Prüfbinders auf Styrol/Acrylatbasis mit einem Weißpigmentgehalt von 16,4 Gew.-% (TiO2, Kronos 2043) (Prüfbinder 00-1067, BASF) in einem 150 ml-Kunststoffbecher mit einem Schnellrührer 3 min bei 1500 U/min homogenisiert. Die erhaltene Farbe wurde dann mit einer 100 µm-Spiralrakel auf schwarz/weißen Prüfkarton aufgezogen und 30 min getrocknet.The color strength of the pigment preparations was determined colorimetrically in the white whitening (indication of the dyeing equivalents FAE, DIN 55986) in a water-based emulsion paint. For this purpose, a mixture of 1.25 g pigment preparation and 50 g of a styrene / acrylate-based water-based test binder having a white pigment content of 16.4% by weight (TiO 2 , Kronos 2043) (Testbinder 00-1067, BASF) in a 150th ml plastic cup with a high speed stirrer for 3 min at 1500 rev / min homogenized. The resulting paint was then coated on a black / white test board with a 100 μm wire-wound rod and dried for 30 minutes.

Die erfindungsgemäßen Pigmentzubereitungen zeigten dabei den jeweils analogen handelsüblichen wäßrigen Präparationen der Pigmente vergleichbare Farbstärken.The pigment preparations according to the invention showed comparable color strengths to the respectively analogous commercially available aqueous preparations of the pigments.

In der folgenden Tabelle sind die Zusammensetzungen der hergestellten Pigmentzubereitungen aufgeführt. Der Gehalt der Additive (B) und (C) bezieht sich dabei, wenn die Polymere in Lösung eingesetzt wurden, auf das gelöste Polymer selbst. Als Additive (B) und (C) wurden eingesetzt:

B1:
wäßrige Lösung eines Copolymerisats aus 50 Gew.-% Maleinsäureanhydrid und 50 Gew.-% Diisobuten (Feststoffgehalt: 25%; pH-Wert: 10; Mw: 12 000) (nicht erfindungsgemäß)
B2:
wäßrige Lösung von Polyacrylsäure (Feststoffgehalt: 45%; pH-Wert: 8,5; Mw: 4000) (nicht erfindungsgemäß)
B3:
wäßrige Lösung eines Copolymerisats aus 70 Gew.-% Methacrylsäure und 30 Gew.-% Acrylsäure (Feststoffgehalt: 25%; pH-Wert: 2; Mw: 20 000) (nicht erfindungsgemäß)
B4:
wäßrige Lösung eines Copolymerisats aus 70 Gew.-% Acrylsäure und 30 Gew.-% Maleinsäureanhydrid (Feststoffgehalt: 90%; pH-Wert: 8; Mw: 70 000) (nicht erfindungsgemäß)
B5:
wäßrige Lösung eines Copolymerisats aus 50 Gew.-% Maleinsäureanhydrid und 50 Gew.- % Isobuten, das mit ethoxyliertem C12/C14-Fettalkohol (7 EO/mol Alkohol) umgesetzt wurde (Feststoffgehalt: 45%; pH-Wert: 7,5; Mw: 3000) (erfindungsgemäß)
B6:
wäßrige Lösung einer Polymethacrylsäure, die mit Polyethylenglykol (Mn 1000) umgesetzt wurde (Feststoffgehalt: 40%; pH-Wert: 7; Mw: 20 000) (erfindungsgemäß)
B7:
wäßrige Lösung eines Copolymerisats aus 30 Gew.-% Isobuten und 70 Gew. % Maleinsäureanhydrid (Feststoffgehalt: 44%; pH-Wert: 7,5; Mw: 4000) (nicht erfindungsgemäß)
B8:
wäßrige Lösung von Polyacrylsäure (Feststoffgehalt: 45%; pH-Wert: 8; Mw: 1000) (nicht erfindungsgemäß)
B9:
wäßrige Lösung von Polyacrylsäure (Feststoffgehalt: 45%; pH-Wert: 8; Mw: 30 000) (nicht erfindungsgemäß)
B10:
wäßrige Lösung eines Copolymerisats aus 50 Gew.-% Styrol und 50 Gew.-% Maleinsäureanhydrid, das mit Polyethylenglykol (Mn 500) umgesetzt wurde (Feststoffgehalt: 43%; pH-Wert: 8; Mw: 10 000) (erfindungsgemäß)
B11:
wäßrige Lösung eines Copolymerisats aus 50 mol-% Maleinsäureanhydrid und 50 mol-% Vinylpolyethylenoxid (Feststoffgehalt: 40%; pH-Wert: 7; Mw: 20 000) (nicht erfindungsgemäß)
B12:
wäßrige Lösung eines Copolymerisats aus 40 mol-% Isobuten, 47 mol-% Maleinsäure und 3 mol-% C18-Olefin (Feststoffgehalt: 25%; pH-Wert: 8; Mw: 10 000) (nicht erfindungsgemäß)
C:
Blockcopolymerisat auf Basis Ethylendiamin/Propylenoxid/Ethylenoxid mit einem Ethylenoxidgehalt von 40 Gew.-% und einem mittleren Molekulargewicht Mn von 12 000
Tabelle Bsp Pigment Additiv Additiv (C) (A) xg (B) yg zg 1 * P.Y. 184 90 B4 10 - 2 * P.Y.184 87,5 B1 12,5 - 3 * P.Y.184 87,5 B2 12,5 - 4 * P.Y.184 85 B3 15 - 5 * P.Y.184 85 B8 15 - 6 * P.Y.184 85 B9 15 - 7 P.Y.184 85 B5 15 - 8 P.Y.184 85 B6 15 - 9 P.Y.184 90 B10 10 - 10 P.Y.184 85 B10 15 - 11 P.Y.184 85 B10 7,5 7,5 12 P.Y.184 80 B10 20 - 13 * P.Y.184 85 B12 15 - 14 * P.Y.184 85 B11 15 - 15 * P.Br.24 90 B4 10 - 16 * P.Br.24 87,5 B1 12,5 - 17 * P.Br.24 87,5 B2 12,5 - 18 * P.Br.24 85 B3 15 - 19 * P.Br.24 85 B8 15 - 20 * P.Br.24 85 B9 15 - 21 * P.Br.24 85 B7 15 - 22 P.Br.24 85 B5 15 - 23 P.Br.24 85 B6 15 - 24 P.Br.24 92,5 B10 7,5 - 25 P.Br.24 90 B10 10 - 26 P.Br.24 85 B10 15 - 27 P.Br.24 85 B10 7,5 7,5 28 P.Br.24 80 B10 20 - 29 * P.Br.24 85 B12 15 - 30 * P.Br.24 85 B11 15 - 31 * P.Y.42 87,5 B2 12,5 - 32 P.Y.42 90 B10 10 - 33 P.Y.42 90 B10 5 5 34 P.Y.42 85 B10 15 - 35 P.Y.42 80 B10 20 - 36 * P.Y.42 85 B12 15 - 37 * P.Y.42 85 B11 15 - 38 * P.R.101 87,5 B2 12,5 - 39 P.R. 101 90 B10 10 - 40 P.R. 101 85 B10 15 - 41 P.R.101 80 B10 20 - 42 * P.R.101 85 B12 15 - 43 * P.R. 101 85 B12 7,5 7,5 44 * P.R.101 85 B11 15 - 45 * P.Y.42 70 B2 30 - 46 P.Y.42 70 B10 30 - 47 P.Y.42 65 B10 35 - 48 * P.Y.42 70 B11 30 - 49 * P.Y.42 65 B11 35 - 50 P.B. 15:1 75 B10 25 - 51 P.B.15:1 75 B10 12,5 12,5 52 P.B.15:3 75 B10 25 - 53 P.B. 15:3 75 B10 12,5 12,5 54 P.R.112 75 B10 25 - 55 P.R.112 75 B10 12,5 12,5 56 * P.R.112 75 B1 25 - 57 * P.Y.74 75 B1 25 - * nicht erfindungsgemäss The following table lists the compositions of the pigment preparations prepared. The content of the additives (B) and (C), when the polymers were used in solution, refers to the dissolved polymer itself. The following were used as additives (B) and (C):
B1:
Aqueous solution of a copolymer of 50% by weight of maleic anhydride and 50% by weight of diisobutene (solids content: 25%, pH: 10, M w : 12,000) (not according to the invention)
B2:
aqueous solution of polyacrylic acid (solids content: 45%, pH: 8.5, M w : 4000) (not according to the invention)
B3:
Aqueous solution of a copolymer of 70% by weight of methacrylic acid and 30% by weight of acrylic acid (solids content: 25%, pH 2, M w : 20 000) (not according to the invention)
B4:
Aqueous solution of a copolymer of 70% by weight of acrylic acid and 30% by weight of maleic anhydride (solids content: 90%, pH 8, M w : 70,000) (not according to the invention)
B5:
aqueous solution of a copolymer of 50% by weight of maleic anhydride and 50% by weight of isobutene which has been reacted with ethoxylated C 12 / C 14 -fatty alcohol (7 EO / mole of alcohol) (solids content: 45%, pH: 7, 5, M w : 3000) (according to the invention)
B6:
aqueous solution of a polymethacrylic acid which has been reacted with polyethylene glycol (M n 1000) (solids content: 40%, pH: 7, M w : 20 000) (according to the invention)
B7:
aqueous solution of a copolymer of 30% by weight of isobutene and 70% by weight of maleic anhydride (solids content: 44%, pH: 7.5, M w : 4000) (not according to the invention)
B8:
Aqueous solution of polyacrylic acid (solids content: 45%, pH: 8, M w : 1000) (not according to the invention)
B9:
Aqueous solution of polyacrylic acid (solids content: 45%, pH: 8, M w : 30,000) (not according to the invention)
B10:
aqueous solution of a copolymer of 50% by weight of styrene and 50% by weight of maleic anhydride which has been reacted with polyethylene glycol (M n 500) (solids content: 43%, pH 8, M w : 10,000) (according to the invention)
B11:
Aqueous solution of a copolymer of 50 mol% maleic anhydride and 50 mol% vinyl polyethylene oxide (solids content: 40%, pH 7, M w : 20,000) (not according to the invention)
B12:
aqueous solution of a copolymer of 40 mol% isobutene, 47 mol% maleic acid and 3 mol% C 18 olefin (solids content: 25%, pH 8, M w : 10,000) (not according to the invention)
C:
Block copolymer based on ethylene diamine / propylene oxide / ethylene oxide having an ethylene oxide content of 40% by weight and an average molecular weight M n of 12,000
table Example pigment additive Additive (C) (A) xg (B) yg zg 1 * PY 184 90 B4 10 - 2 * PY184 87.5 B1 12.5 - 3 * PY184 87.5 B2 12.5 - 4 * PY184 85 B3 15 - 5 * PY184 85 B8 15 - 6 * PY184 85 B9 15 - 7 PY184 85 B5 15 - 8th PY184 85 B6 15 - 9 PY184 90 B10 10 - 10 PY184 85 B10 15 - 11 PY184 85 B10 7.5 7.5 12 PY184 80 B10 20 - 13 * PY184 85 B12 15 - 14 * PY184 85 B11 15 - 15 * P.Br.24 90 B4 10 - 16 * P.Br.24 87.5 B1 12.5 - 17 * P.Br.24 87.5 B2 12.5 - 18 * P.Br.24 85 B3 15 - 19 * P.Br.24 85 B8 15 - 20 * P.Br.24 85 B9 15 - 21 * P.Br.24 85 B7 15 - 22 P.Br.24 85 B5 15 - 23 P.Br.24 85 B6 15 - 24 P.Br.24 92.5 B10 7.5 - 25 P.Br.24 90 B10 10 - 26 P.Br.24 85 B10 15 - 27 P.Br.24 85 B10 7.5 7.5 28 P.Br.24 80 B10 20 - 29 * P.Br.24 85 B12 15 - 30 * P.Br.24 85 B11 15 - 31 * PY42 87.5 B2 12.5 - 32 PY42 90 B10 10 - 33 PY42 90 B10 5 5 34 PY42 85 B10 15 - 35 PY42 80 B10 20 - 36 * PY42 85 B12 15 - 37 * PY42 85 B11 15 - 38 * PR101 87.5 B2 12.5 - 39 PR 101 90 B10 10 - 40 PR 101 85 B10 15 - 41 PR101 80 B10 20 - 42 * PR101 85 B12 15 - 43 * PR 101 85 B12 7.5 7.5 44 * PR101 85 B11 15 - 45 * PY42 70 B2 30 - 46 PY42 70 B10 30 - 47 PY42 65 B10 35 - 48 * PY42 70 B11 30 - 49 * PY42 65 B11 35 - 50 PB 15: 1 75 B10 25 - 51 PB15: 1 75 B10 12.5 12.5 52 PB15: 3 75 B10 25 - 53 PB 15: 3 75 B10 12.5 12.5 54 PR112 75 B10 25 - 55 PR112 75 B10 12.5 12.5 56 * PR112 75 B1 25 - 57 * PY74 75 B1 25 - * not according to the invention

Claims (6)

  1. Solid pigment preparations comprising as essential constituents
    (A) from 60% to 95% by weight of at least one pigment,
    (B) from 5% to 40% by weight of at least one watersoluble anionic surface-active additive selected from the group of homo- and copolymers, after partial or full esterification with polyether alcohols or their singly tipped derivatives, of ethylenically unsaturated monocarboxylic acids and/or ethylenically unsaturated dicarboxylic acids with or without vinyl monomers comprising no acid function and salts of these homo- and copolymers and
    (C) from 0% to 20% by weight of at least one nonionic surface-active additive based on polyethers.
  2. The pigment preparations according to claim 1 in the form of granules having an average particle size from 50 to 5000 µm and a BET surface area of ≤ 15 m2/g.
  3. A process for producing pigment preparations according to claim 1 or 2, which comprises wet-comminuting the pigment (A) in aqueous suspension in the presence of some or all of additive (B) and if appropriate (C) and then drying the suspension, if appropriate after the rest of additive (B) and if appropriate (C) has been added.
  4. A process for pigmenting macromolecular organic and inorganic materials, which comprises incorporating pigment preparations according to claim 1 or 2 in these materials by stirring or shaking.
  5. The process according to claim 4 for pigmenting coatings, paints, inks, including printing inks, and finish systems where the liquid phase comprises water, organic solvents or mixtures of water and organic solvents.
  6. A process for pigmenting plastics, which comprises incorporating pigment preparations according to claim 1 or 2 in the plastics by extrusion, rolling, kneading or grinding.
EP03795813.9A 2002-11-18 2003-11-11 Solid pigment preparations containing water-soluble anionic surface-active additives that comprise carboxylate groups Expired - Lifetime EP1565531B2 (en)

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DE10253804A DE10253804A1 (en) 2002-11-18 2002-11-18 Solid pigment preparation for use with high mol. wt. (in)organic materials contains a polymeric water-soluble anionic surfactant and optionally also a polyether- based nonionic surfactant
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